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tim_mc · 04-17-2020, 06:42 PM

I might agree with the L31 advice, or if you have time yank it out and have a shop check it out. I went with a 4-bolt main 350 195-249hp crate motor (hp rating varies depending on the web site) but am adding a Comp Cams roller cam & lifter set with Brodix IK-180 alumimum heads. Had I took more time to investigate, I may have gone with a Vortec L31 and maybe a different cam. Or had the timing worked out, my cousin just gave my dad a later 350 with a 1-piece rear seal and provisions for a factory roller cam ('95-'99, casting 10243880), which would be a great block to build on.

04-17-2020, 06:42 PM	#13
tim_mc Registered User Join Date: Jan 2019 Location: St Peters, MO Posts: 434	Re: Cracked 350 Crank, build 383? I might agree with the L31 advice, or if you have time yank it out and have a shop check it out. I went with a 4-bolt main 350 195-249hp crate motor (hp rating varies depending on the web site) but am adding a Comp Cams roller cam & lifter set with Brodix IK-180 alumimum heads. Had I took more time to investigate, I may have gone with a Vortec L31 and maybe a different cam. Or had the timing worked out, my cousin just gave my dad a later 350 with a 1-piece rear seal and provisions for a factory roller cam ('95-'99, casting 10243880), which would be a great block to build on. __________________ 1967 C20, 350 SBC w/Comp roller cam, 700R4 w/3.42 posi, PS, 4-wheel PDB, Old Air AC & GM Tilt column. Last edited by tim_mc; 04-17-2020 at 06:54 PM.