3919840 heads

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1969 Camaro Chevelle Nova BB 396 427 919840 Cylinder Heads Dated C-21-9 Pair Part # NOS-2202 $1,499.95 add to cart Right now we are limiting the listings to Chevy V-8 blocks, cranks and heads. As new castings are released on late models keep your eyes open for the new numbers. Thanks! We appreciate the support and encouragement we have received from our visitors around the world for the past 20 years. We would like to thank everyone that has contributed to the data provided on this site. This information has been gathered from several sources and has not been verified

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Big block Chevy heads 3931063 , nice used heads , unmolested , closed chamber ,,2.06/1.72, 100.967cc, assume needs freshening. OR trade for one 3919840 head Camaro Corvette Nova Chevelle Impala There are also "semi-closed" chamber heads like the c/n 215 heads. They are shaped more like an open chamber head, but with less volume. These heads are a decent choice for a production head especially on a smaller displacement engine (up to 454 cid). Casting number 820 heads are similar to the 215 semi-closed head, but with less quench pad area. These heads were also used on 1968 and 1969 Chevelles, Camaros, and Chevy II, with the 396 or 427 engine. Both of these heads have the identical casting number of 3919840 and casting dates of F 13 8, and F 17 8, which is June the 13th and June the 17th of 1968, which would be date-wise correct on a late 68 or early 69 vehicle.

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We offer a variety of 427 Heads for your automotive needs. No matter what you're driving, we have the right 427 Heads for your vehicle New and Used Automotive Parts and Accessories On Sale Re: stock bbc heads question 08-08-06 10:34 AM - Post# 982547 In response to Jims56chevy thats alot like asking which girl looks best, with out sellecting a few too pick from, and the guy whos doing both the sellecting and judging will effect the answer. Jan 04, 2014 · By popular demand I attempt to give some good insight and info on Big Block Chevrolet Heads. By popular demand I attempt to give some good insight and info on Big Block Chevrolet Heads. item 3 68 corvette chevelle camaro nova 396 427 bbc square port head 3919840 k 2 7 - 68 corvette chevelle camaro nova 396 427 bbc square port head 3919840 k 2 7 $408.45 +$59.95 shipping

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* The 1973 454 Corvette engine was rated at 270hp. Since this head has the same intake/exhaust and cc volume, it's not known why it is listed at 245hp for 1973. ** The L79 327/350 engine was never available in the Chevelle lineup in 1966; this cylinder head was used on the 1966 L79/350 in the Chevy II/Nova and Corvette.

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Jan 04, 2014 · By popular demand I attempt to give some good insight and info on Big Block Chevrolet Heads. By popular demand I attempt to give some good insight and info on Big Block Chevrolet Heads.

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Re: stock bbc heads question 08-08-06 10:34 AM - Post# 982547 In response to Jims56chevy thats alot like asking which girl looks best, with out sellecting a few too pick from, and the guy whos doing both the sellecting and judging will effect the answer. Re: stock bbc heads question 08-08-06 10:34 AM - Post# 982547 In response to Jims56chevy thats alot like asking which girl looks best, with out sellecting a few too pick from, and the guy whos doing both the sellecting and judging will effect the answer.

229 Available - RacingJunk Classifieds features & sells race ready Heads. Browse our inventory of Heads today, while they still last! There are also "semi-closed" chamber heads like the c/n 215 heads. They are shaped more like an open chamber head, but with less volume. These heads are a decent choice for a production head especially on a smaller displacement engine (up to 454 cid). Casting number 820 heads are similar to the 215 semi-closed head, but with less quench pad area.

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Remove either one of the valve covers, and look on the cylinder head surface between the first and second set of valve springs for the head casting number. Casting numbers 3873858 (1966 through 1967), 3904391(1967 only), 3919840 (1967 through 1969) and 3919842 (1968 through 1969) could indicate either 396 or 427. This is a pair of original GM cylinder heads for a Big Block Chevy Engine. The casting number on each head is 3919840. These heads are the high performance version with rectangular intake ports and closed combustion chambers. These heads were used by GM on late 67-69 L78 396/375HP, 427/425HP(COPO/YENKO), and 427/435HP engines. Dec 23, 2019 · #1---Head Flow Charts & Comparisons : 12/23/2019: There are enough flow numbers on our website to keep everyone busy for a while. The numbers are from our in-house flow bench. We now have a SAENZ model 680 flow bench which we all enjoy using. It has all the bells and whistles and even gives us information that we didn't even ask for.

Browse Cylinder Heads in stock and ready for shipping right now! ... 69 Big Block Chevy Rectangle Port Cylinder Heads 3919840 427 425hp Copo Ls6 L78. $1,750.00. This is for a Pair, (2 Matching), of Bare Mid Year Late 67 1967 or Early 68 1968 Used Chevrolet BBC, (Big Block Chevy), Large Square Port, Special High Performance, Very Rare Early Used Cylinder Heads in Good Condition, (GM Casting Number 3919840, GM Group Number 0.269). Right now we are limiting the listings to Chevy V-8 blocks, cranks and heads. As new castings are released on late models keep your eyes open for the new numbers. Thanks! We appreciate the support and encouragement we have received from our visitors around the world for the past 20 years. Nova SS, Camaro SS, 396, 454, 427, Chevy big block cylinder head casting codes. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. The code is usually found on the top of the head in between two valves and the rocker arm studs.

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Remove either one of the valve covers, and look on the cylinder head surface between the first and second set of valve springs for the head casting number. Casting numbers 3873858 (1966 through 1967), 3904391(1967 only), 3919840 (1967 through 1969) and 3919842 (1968 through 1969) could indicate either 396 or 427. Mar 31, 2015 · Performer Heads: After achieving excellent results from the regular 110-cc chamber E-Street head, I turned my attention to the RPM Performer head (PN 60489), which is the bare casting. It has identical ports to the E-Street head but it is rolled 1.5 degrees. My 1969 Corvette 427/435 L71 has 3919840 heads (Rect.port, Closed chamber 2.19/1.72 valves). Not all 454 heads were open chamber. 1970 454LS6 has closed chamber heads, Rect.port, 2.19/1.88 valves. 1970 Camaro Z28,RS.

The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. It is usually found on the top of the head in between two valves and the rocker arm studs. View Big Block Cylinder Head Codes Select BB Cylinder Head Group ALL Head Codes 348/409 366 396/402 427 454 502 In GM heads this phenomena is most often found on the hardest to find heads. Cast iron big block Chevy heads numbered 3856208, 3873858, 3904391, 3919840, 3964291, and 3994026. Aluminum Chevrolet big block heads numbered 3904392, 3919842, and 3946074. Small block Chevy heads numbered 3782461, 3890462, 3917291, 3927186, 3927187, and 3947041. These heads were also used on 1968 and 1969 Chevelles, Camaros, and Chevy II, with the 396 or 427 engine. Both of these heads have the identical casting number of 3919840 and casting dates of F 13 8, and F 17 8, which is June the 13th and June the 17th of 1968, which would be date-wise correct on a late 68 or early 69 vehicle.