Dec 23, 2001 · L78 the 396/375 was available in 66 - 70 Chevelles and 68 through 70 Novas and 67 through 70 Camaros (althought the 70's of all three varieties carried a .030 larger bore …

Nov 29, 2023 · Yup, thats a 4 bolt 396 L78 block. Should have 840 heads. This day and age, if it's a strong runner $5-7K IMHO My 1970 SS454 LS6 SuperCar certified stock appearing …

Sep 19, 2017 · 66 l78 cams had 336 duration on intake and exhaust, 67 and up had less 316 intake and 302 exhaust, lift was the same on both cams at 520. How much of a power …

Mar 25, 2025 · I had two sets of new G.M. valve springs for the LS6 and L78 engines still in their blue and white boxes. All I have to do is remember where I put them.

Apr 6, 2025 · The Novas did offer the L78/M40 combo in '70, but the new generation Camaro SS only offered the L78 with a 4-speed (production 600 even). The CTY engine code was for the …

Oct 2, 2014 · I've been having discussions with a gentleman about the L78 in 1967 Chevelles. He has pointed to at least two articles that say it was a dealer-installed option/accessory. I can't …

Oct 5, 2015 · Thought some might be interested in this build: factory 1969 L78 396 375HP. 3.760 stroke std, 4.134 bore, Speedpro L78 pistons, sealed power moly rings, resized 3/8 dimple …

Mar 22, 2004 · L78 - 1966 and up Chevelle SS engine option. Also 11:1 compression, mechanical cam, also rated at 375HP. The L37 in the 65 Corvette carried a mechanical cam and was …

May 6, 2007 · The specs I looked up on line showed a 4 degrees btdc for initial timing and 28-32 dwell. I am running 93 octane gas. Should I be running a different timing to avoid detonation …

Jun 9, 2024 · Alright, BLUF - L78 motor from a 67 SS396, blew the cam during break in, solid lifter mechanical, rebuilding now and I’ve seen a lot of threads on HP builds, streetable builds, etc. …