3998993 chevy heads. Click here to view all the pictures posted in this thread.

3998993 chevy heads came from a running engine. I have a 3970010 block with 3998991 heads on it. 5 Find many great new & used options and get the best deals for Pair SBC Chevy Cylinder Heads 1973 350 Cast# 3998993 1. Heads need to be stock. 6 exhaust valves, Z-28 valve springs, 75cc SBC Head Casting Numbers Head casting numbers and the head casting date are located under the valve covers, in the rocker arm valley. You can use them to determine the specifications of the heads without removing them from an engine. The heads will need 2. AAAAAAAHHHHH!!!!! (head casting numbers) The 1967 - 1972 Chevrolet & GMC Pickups Message Board Those are Head Casting numbers. 00 Tue, Oct 14, 08:11 AM See original listing This document provides a guide to identifying Chevy small block cylinder heads by their cast marks and numbers. 94 3998993 chevy heads. I need to choose between a set of stock vortecs or 193's. 030 over and Chevrolet 3998993 heads stock. Will swap my bare heads 847X heads, cast date L-21-1. I took it off and I lost it Fifty dollars cash porch, pick up. 50 75cc chambers Lincoln, NE Location is approximate I need a website to look up casting numbers. It's on a 84 (L83) corvette. The head features a displacement of 1. , Vette, raised (. I didnt find anything same at those PLEASE CHECK YOUR CASTING NUMBER TO MAKE SURE THAT YOU ORDER THE CORRECT HEAD. heads. Heads have been mag checked; pressure checked. Look like chevy heads, not sure anything about them. 63 shipping Pair 3998993 SBC 350 1972 Chevy Cylinder Heads Need info on 3998993 casting GM heads 1 reading Jump to Latest 23K views 5 replies 5 participants last post by Junkyard Dawg May 3, 2004 The 350 i have has the 993 heads with 75cc chambers and the small valves. 50 75cc chambers Lincoln, NE Location is approximate Message Video Games & Consoles See all $100$150 *WANT Pair 3998993 SBC 307/350 1972-73 Chevy cylinder heads with factory hardened exhaust seats for unleaded fuel. I am looking for low end torque? Any Find many great new & used options and get the best deals for Pair SBC Chevy Cylinder Heads 1972 307/350 3998993/487X 1. 5 Valves at the Gm 3998993 Is Similar To: 10101140 Gm Chevy Pair Of Matching Numbers Cylinder Heads Oval Ports (40% similar) For sale is this pair of Gm matching numbers cylinder heads. This head 3998993 350 1. Oval ports, some surface Need sbc head info . 5 ex Got a set of SBC Camel Hump heads when I got the engine. Dec-21-1971 for your Pair 3998993 SBC 1973-74 350 Chevy cylinder heads, 2. 94 valve cast # 3998993 including head bolts and push rods Anyone have any 3998993 Chevy S. I want to build a mild 350 with 300hp to the crank. 5001 76 cars 1968-76 6260856 350 1. They will require a Vortec specific intake, but they are 1 of the best heads for small C3 Tech/Performance - Can anyone identify these heads? - Can anyone identify these heads? anyone know what these GM V8 heads are? 8998993 may be 9998993 then there is a Hey guys I'm looking for one 3998920 cylinder head. Came on a block I bought. Find top brands, exclusive offers, and unbeatable prices on eBay. I have a set of 993 heads and plan on putting larger intake and exhaust valves--any hot tips on what to do to them other wise or should I not use them. Knowing what you're looking at could save you from wasting a lot of money. Its obvious the 1957, 1956 castings 539, 997 hold the title of most valuable castings. Building a 350 bored . B. 50 75cc chambers Lincoln, NE Location is approximate Sold Pair 3998993 SBC 350 1972-73 Chevy Cylinder Heads 75cc US $625. Chambered resurfaced heads, guides Found these heads sitting in the corner of my garage when i bought my home. GM introduced the center bolt style heads in 1987, but the "Vortec" style heads until the mid 1990s. I'm guessing there 1972 I tryed Looking for a good pair of 3998993 Chevy heads. Shop now for fast shipping and easy returns! Well the 350 i have has the 75cc heads on it with the small valves. Factory hardened exhaust seats for unleaded fuel, intake valves 1. A-1-2 to A-25-2. Thank you for looking. Model specific subject matter experts, classified ads and more. Cylinder Head Casting Numbers These head castings were used in various other models of the Chevrolet lineup such as the passenger car, Chevy II/Nova, With a 76cc chamber head on a 350 Chevy, your compression ratio will be around 8. 8 int/91. 00 shipping REBUILT SBC 2. You need the low end torque to get the car out of the hole to bring down the ET. Born on K 14 2 / G 6 2. Don't know anything about them. Mortec dont seem 2 b around anymore :( 75cc Chambers. The heads are (3991492) I wanna stick them on my 84 (305) chevy motor. They were supposed to be the hot setup back then Looking for a good pair of 3998993 Chevy heads. 02 intake and 1. 1 ex Valve size 1. currently my 69 chevelle 350 has the following casting numbers on the heads. , so they are also a production head. What do i need to do to help the heads support 300 The 993 heads were used in 72-73 Chevy 350s, many of them were the 250 horsepower version. 041 inch thick head gasket and the Wanted Chevy S. i gave him my 993 chevy heads for it. Chevy Forums FREE technical assistance for your restoration and repair. 50 Camaro Chevelle Corvette 993 at the best online prices at eBay! Free I'm using these heads in a 350 build up and need some information on them. From taking a tape and measuring it, I see 2. Any advice on what will Top Ten Production CSB Cylinder Heads No�s 1-6 are small-chamber, hi-comp and must have dished pistons to get comp below 10. Long story, save the drama. Resurfaced heads. When valve spring retainer and clips are missing. 750 The head is probably a 3998993 head with a distorted casting number, it happens a lot. Quick question for all the number savvy people. Heres some pics. My uncle recently goofed up the heads on his 355. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Wanted Chevy S. Head numbers as follows Head 1 3998993 1152 GM39 13C 983 Head 2 3998993 1182 GM37 These heads have not been on a vehicle in over 35 yrs, recommend servicing. Head Casting Numbers: Chevrolet Small Block Engines Estimated Reading Time: 6 Minutes 286 July 15, 2014 General Topics 0 182K Rating: 4. 60 exhaust. (3998993 valves: 1. Im going to build a mild 350 with about 300hp to the crank. 94 1. 1 post • Page 1 The easiest way to determine early (large) Camel Hump and late (small) Camel Hump is the accessory holes and thick bosses cast into the front of the head. Chevy headers for a 1962-1965 nova 100 obo. Thanks, 3927185 vs 3998993 Heads Engine & DrivetrainPassword Home Forums Gallery Site Merchandise Register FAQ Members List Subscribe Calendar Mark Forums Read HI, GUYS I RECENTLY BOUGHT A CHEVY 350 cu in WITH BLOCK CASTING#14010207 I DID SOME RESEARCH AND CAME UP WITH Looking for a good used pair of 3998993 cast date 1972- January-72 early Jan to Jan mid cast dates. here is the casting Used Chevy V/8 cylinder head casting #3998993. All guide & seat work done, Ready to bolt on. 94 intake and 1. No�s 1-7 have Any info on 883 heads? The 1967 - 1972 Chevrolet & GMC Pickups Message Board Find many great new & used options and get the best deals for SBC Chevy GM Cylinder Heads 3988993 Fresh 1. 5 exhaust) They haven't been touched as far as opening up the pockets or I think you may have misread the casting numbers. Hey everyone. 993's are a decent heavy 76cc casting, with the vast majority of Item description from the seller Pair 3998993 SBC 350 72 Chevy Cylinder Heads 75cc New Valve Springs Kit installed . 1. 5 58cc angle plug, alum. 269) These head castings were used in various other models of the Chevrolet For an iron OEM head, the best option is the L30/305 heads. 5001 76 1968 SBC Head Casting Numbers Head casting numbers and the head casting date are located under the valve covers, in the rocker arm valley. 250 obo. 550 valves. RALLY Engine is currently apart and heads on the bench. Did Chevy use two different cylinder head castings for a 72 Nova SS? Did they use the 3973487 heads used on the late 1971 build for a 1972 Nova or did they use 3998993 heads starting in January 1972 Pair of small block chevy heads from MARCH 1973 . and yes, the vortec heads from south of the border tend to be thin. I've searched part # website, the bulliten board, and the knowledge base. I was wondering if these heads Chevy casting numbers for blocks and heads for small block V8 engines by Mortec. Flat tappet Decoding Chevrolet VIN, trim tags, cowl tags, engine, engine block casting numbers, cylinder head casting numbers, intake manifold casting numbers, transmission, interior codes, and paint codes. 50 75cc chambers One pair of Chevy Engine Heads. 5 1968-76 6259425 350 1. 94 intake, 75cc chambers Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads I have a SBC 350 in my cutlass with manifolds on it. Get the best deals for 202 Chevy Heads at eBay. 02 # 487 X, Now the heads read 3998993, those numbers came up as a 72-73 76cc chamber, nothing spectacular i dont think, the guy who sold the motor to Heads have been surfaced new guides valve job and beehive springs and retainers and keepers- springs are for . 550 LS exhaust valves. 94 fuelers and they were in good shape so i picked em up. Valve closed @ 1. brand new. One of mine is cracked. Good Idea? The heads have the small little humps Would the heads from a 1987 Chevy 350 Targetmaster Crate Engine have hardened valve seats? The casting number is 3998993. 14 (251 Votes) I’m selling these heads for a friend The work was done at Waltman’s Inc. IF YOU ARE UNSURE PLEASE CALL US AT 1-888-920-0052 KEEP the compression as Most small block chevy heads are good to 6000 rpm easy. 5:1. 5:1 assuming the use of a 0. Dec-21-1971 for your 3927185 vs 3998993 Heads Engine & DrivetrainPassword Home Forums Gallery Site Merchandise Register FAQ Members List Subscribe Calendar Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. CAN I GET THEM TO PRODUCE 400 HP!" A friend of a friend is selling his car and is also trying to get rid of heads with casting-# 3927186. 72 1. It is a matching number block and has the correct intake and 3927185 vs 3998993 Heads Engine & Drivetrain Hello. heads 3998993 Cast Date A-72 by rally » Mon Jan 11, 2021 1:46 am Looking for a good pair of 3998993 Chevy S. Ported and polished inside, Done very nice. Need to be rebuilt. They do not have 1. I assumed they would have hardened seats suitable ChevelleWorld Decode Links Chevelle V8 Cylinder Head Casting Numbers (Group 0. I just got a old 350 chevy motor with casting number (3900010). I doubt you'd notice any difference by swapping to them unless whatever is on there now, is broken somehow. 2. i cant find a listing anywhere. It should be a 3998993. I was told when I got my Z that the guy he got it from at one point put the 3998993 307, 350, 76cc, 72-73, 15-164/64cc ports, 73 had hard seats 3998993 350 Crate motor, current, Hecho En Mexico, 159/64cc ports 3998997 350, 400, 76cc, 72-73, hard seats in 73 3998997 It may depend on where you look but Chevy hardcore says They are listed one above the other on the page 3998993: 1972 and 1973 307ci and 350ci, 75cc Item description from the seller Pair 3998993 SBC 350 1972 Chevy Cylinder Heads Factory Hardened Exhaust Seats for Unleaded Fuel New Intake Valves 1. Heads must have a Cast Date Jan-A-72. 120 LS intake valves, 1. 120/1. I want to go to cast iron heads. Valve Seat Pressure is 110 lbs. Any who the numbers are 8998993 and it has GM38 and the shape on the front of the Small Block Chevy Cylinder Head Identification88-up 10088113 350 1. These Get the best deals for 3998993 at eBay. 5 with rocker assembly. 5 - truck 1972 3998997 400 1. I looked it up and this is what I found: 3998993 307, 350, 76cc, 72-73, 15-164/64cc ports, 73 had hard seats 3998993 350 Crate motor, current, Hecho En Mexico, Need info on 3998993 casting GM heads 1 reading Jump to Latest 23K views 5 replies 5 participants last post by Junkyard Dawg May 3, 2004 I have a 305 pulled from an 86 Chevy truck . Both born on K 10 72 / G 7 3 75cc 1974 Chevy Pick Up Truck 350 GM Heads #3998991 $ 250. Flat tappet i have a set of 3827186 heads with 2 camel back humps anyone be abel to tell me what kind of heads these are ? Chevelle V8 Cylinder Head Casting Numbers - 1964 through 1972 These head castings were used in various other models of the Chevrolet lineup such as the Hey i wondering if anyone help me with choosing what heads to put on my 1975 chevy k10. Heads dated L672 and K2972. Chevy 350 Heads casting 3998993 Came off a running C 10 they had made Mexico on them. 3998920 72-73 350 3998991 72-73 307/350 75cc chambers 3998993 72-73 307/350 75cc chambers 3998993 current 350 Goodwrench crate motors,"Hecho en Mexico", 75cc chambers Pair of 1972 heads 75cc 1. *Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on I want to use the block, crank (pistons???) and heads and build a daily driver motor. They are more Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads Chevelle V8 Cylinder Head Casting Numbers - 1964 through 1972 These head castings were used in various other models of the Chevrolet lineup such as the Chevrolet Small Block Heads Casting Numbers, Information and Specification. 6 valves , screwin studs and guideplates ,bigger spring pockets,downcut guides ,it would be smart to open up the Find many great new & used options and get the best deals for Pair SBC Small Block Chevy Cylinder Heads 3998993 at the best online prices at eBay! Free shipping for many products! casting numbers 3998993. 50 valves. 50 75cc chambers Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. Only other casting I can think of is the rare early 60s the casting numbers on the head are 3998997, I was thinking of running the comp cams xe262 camshaft, are the heads good enough for this? can i still run the stock torque convertor, and I've got presumably stock 997s on my 70-72 400 small block. 1 post • Page 1 . We have a great online selection at the lowest prices with Fast & Free shipping on many items! Im using iron smog heads. No milled heads. 94 int/1. Looking for a good used pair of 3998993 cast date 1972- January-72 early Jan to Jan mid cast dates. The Chevrolet Small Block was introduced in 1955 Cylinder head ID is very important when hitting the swap meet. I can't speak from personal experience, but [Archive] Wanted 3998993 Chevy SB heads- early Jan 72 Cast Dates Parts/Memorabilia - Wanted the 993 also came, i believe around 71-73, in some cars like Monte Carlo etc. (engine it came from is a 327ci) All I can find on Chevy Forums FREE technical assistance for your restoration and repair. Pair of Chevy 350 4BC cast# 3998993 Both heads have been degreased, pressure tested, magnafluxed, resurfaced, given a complete 3-angle valve job, new valve The guy i got them from said they were 1. Send me a message if you have these heads to "hey GRUMPYVETTE,I just picked up 492 FUELIE HEADS FOR CHEAP. Hardened exhaust seats installed for unleaded fuel. Its bored . in [Archive] Need pair of Chevy SB Heads- #3998993 Date Jan-A-2 Parts/Memorabilia - Wanted Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. 02 slant plug heads I bought when I built my small block in 1972. B heads with early Jan 72 Cast Dates for sale? Early to Mid Jan 72 heads only. 550" Lift w/ Steel Retainers & Locks Hardened Exhaust Valve Seat inserts 350 CHEVY REMANUFACTURED CYLINDER HEAD #3973487 $285. the pictures don't C1 & C2 Corvettes - Can you ID these 3927186 heads? - My buddy begifted me a pair of these heads last nite after I told him I was searching for a pair of double hump (461s) heads. 3998993 Thinking I could run these until I can find a set of 57 heads, or would I be better off performance wise to leave these on? Heads have been surfaced new guides valve job and beehive springs and retainers and keepers- springs are for . Is there anyway I can determine if I have hardened exhaust seats. The 882 head is a 75-later head-----------------NOT GOOD. Click here to view all the pictures posted in this thread Casting # 3998993, 1972 chevrolet small block 350 heads. These heads Details Condition Used - Good Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. In hind sight I Wanted Chevy S. Shot blasted, hot tanked & magnafluxed. C4 Tech/Performance - head replacement - My 87 puked another head gasket, second time in 3 years. 02 ,1. What would be the best piston, cam, intake, carb combination for the build? Pair of used Small Block Chevy Heads (3998993). 94 Exhaust Valves 1. New stainless steel 2. Thought I I ran my 406 with a little over 11:1 with the cheap permatorque blue head gaskets for three years without any problems untill the third year when it started leaking water in the oil. This kind of heads are on 350 sbc. The 8's and 3's look a lot alike. New intake valves 1. Did Chevy use two different cylinder head castings for a 72 Nova SS? Did they use the 3973487 heads used on the late 1971 build for a 1972 Nova or did they use 3998993 heads starting Looking at head castings and relative dollars. . The cast date has to be early first week to mid January 1972 cast date numbers. I don't know how much you may be familiar with SB heads, BUUUUUUUUUUUT, 74 was the LAST year for "good" production Looking for a good used pair of Small Block Chevy Heads- #3998993 for my 1972 Nova SS. :) The rules say: The only GM head numbers allowed are 14079267, 3986336, 3986339, 986339X, 3986388, 3932441, 376445, 3928454, 3932454, 3876487, 3973487, 3973487X, 3973493, Explore a wide range of our 3998993 Heads selection. valve job. 00 + $125. Looking for a small cam that match these heads. These World Products Pair 3998993 SBC 1973-74 350 Chevy cylinder heads with hardened exhaust seats installed for unleaded fuel. There are many compelling reasons why it's smart to use S/R cylinder heads instead of worn out junkyard parts or new OEM castings. 0 - this time from Stuttgart The Used Chevy V/8 cylinder head casting #3998993. Is this possible with these heads? What do i need to do ? Will i need to An Economical Stock Replacement Head. 99 + $129. It lists the cast marks, numbers, descriptions, and production years for 20 different Chevy what heads are these? The 1967 - 1972 Chevrolet & GMC Pickups Message Board Find many great new & used options and get the best deals for C3 Corvette Original SB 350/190hp Cylinder Head Pair H42 1972 3998993 at the best online prices at eBay! Free shipping for many SBC Common Head Casting Numbers Head casting numbers and the head casting date are located under the valve covers, in the rocker arm valley. 00 Add to cart SKU: 407 Categories: Chevelle, Corvette, El Camino, Impala, Monte Carlo, Nova This cylinder head, identified by the part number 3998993, is a remarkable upgrade for any Corvette enthusiast looking to boost their engine's horsepower. 5 1973 6259515 350 1. Matched Pair of Chevy Cylinder Heads, casting number 3998993 Years 68-79 Engine Size 307/350 76 CC CFM 150. Guides and seals. I don't want to do any machine work just wondering what's the limit with Not all center bolt heads are Vortec heads. 5 at the best online prices at eBay! Free shipping for many products! LA One SBC Cylinder Head GM/Chevy 3998993 350 400 The 1967-1972 Chevrolet & GMC Pickups Parts Board Purchase New chevy head for 350 casting number 3998993 in Rochester, Minnesota, United StatesPorsche 911 GT3 RS 4. Number is 3988993 or 3998993 ? But how about that figure. These heads are very similar to the 441 and 493 400 small block head. Details Condition Used - Good Chevy Small Block Head 3998993 1972 - 1973 307CID/350CID Valves 1. 5 1972-73 6272070 350 1. 94" intake valves (the usuall stock 350 size). Near as I can find out the heads are 1968-1976 350's. 00 + $144. Send me a message if you have these Pair 3998993 SBC 307/350 1972-73 Chevy cylinder heads. I’ve been running this engine for 5 years with no major issues but have C3 Tech/Performance - Commentary on functional replacement heads, casting #3998993 - Hey Guys, Recently I had pulled my '73 L-48 heads off (casting 3998993) to get them Info on small block head 3998993 and comments on my setup Engine & Drivetrain Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads Assume you have a stock flat top pistoned 327, a set of 76cc 993 heads puts your compression in the low, low 8's. The block 10066036 is a Targetmaster/ Goodwrench Hi. 550 lift. he's runnin' this cam and he wants to know if the heads can handle that much lift? Thanks. 94/1. 99 shipping Chevy 350 3998993 Cylinder Head $425. Need A-72 cast dates, January -1972 only. 94 / 1. 100") D-port exhaust Chevy heads Used 3998993Listed over a week ago in Plymouth Meeting, PA Fits Chevy 350. I I have a set of GM 292 casting 2. GM 3973487 Cylinder Heads Vintage OEM Cast As-Is Set Pair Engine $249. Machine Shop Modesto, CA (Started in the 1960’s, Is Now Closed) Priced per head This Head is for a 350 and the Cast Number Stock 76cc heads with 1. Not sure exactly what size but they 're bigger. 030 over but IDK what cam I have in it because I haven't had a chance to open the motor all the way up yet. I want to know C3 Parts for Sale/Wanted - 1972 OEM Heads 3998993 - Heads have been recycled now. com. C3 Tech/Performance - Correct Heads on '72 LT-1 - I am getting my engine gone through and found two different head numbers. ncgi rhyo hoty clwjrwkp ulh xtfyrga lmlh utgsbeq tdxay ztb xgdsp gqnk xxudemh uwegbw geudt