This was accomplished with different piston dome configurations. The information contained in all of the engine detail sections should be read before proceeding with modifications, etc. , because some information that applies to all engines, or all. The olds 425 produces tons of low rpm torque. The information contained in all of the engine detail sections should be read before proceeding with modifications, etc. , because some information that applies to all engines, or all. 46 registered specifications for oldsmobile delmont 88 425 7. 0 v8.
The oldest castings (used. 40 rows1967 oldsmobile engine specifications ('66, '68 and '69 specs are also included, for comparison purposes) The boxwrench engine specs database is a community resource for mechanics of all skill levels to access a reference library of firing orders, distributor rotation directions and block. Motor says 389244d with c heads. I say a performer bbo intake with the stock 750 cfm qjet rebuilt. Or a custom tuned 76 to 79 800 cfm qjet or a 750 street demon. Oldsmobile 425 v8 1966 with 4. 125″ bore, 10:25 compression ratio. 425 internals [or, is that forged crank and short stroke a bonus?], requires the early pattern flexplate, and those 0. 921 lifters at $100 a set or so, which require shorter. Bigblocks displace 400, 425, or 455 cubic inches.
