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-   -   70 pontiacYU350 with #62 heads (https://www.lateral-g.net/forums/showthread.php?t=33981)

lomchivok 10-16-2011 05:58 PM

70 pontiacYU350 with #62 heads
 
Got a 70 Pontiac 350 YU block..a good runner with #11 heads. Have a set of #62 4bbl heads with 2.11 and 1.77 valves with 72cc chambers. I know the comp will be high with today's pump gas but figure a thicker head gasket may get the ratio down enough.

Will there be a problem with the big valve heads on this 350 block as far as the valves contacting the block...What cam would you recommend?

thanks in advanced...

takid455 10-18-2011 10:31 AM

compression would be fine. I run 62's on 400's. 455 w/ 62's creates an issue.

Dont know what car or what your goals are to select cam. budget? roller / flat tappet

the old H-O racing HC-02 (RA3/ 71 -72 HO ) would be nice. a touch on the aggressive side for a350 but manageable.

need more info . prob best to talk to cam manuf or place you were to buy the cam. Just dont get a chevy cam. will cost more, but worth it.

lomchivok 10-21-2011 09:30 PM

Quote:

Originally Posted by takid455 (Post 374438)
compression would be fine. I run 62's on 400's. 455 w/ 62's creates an issue.

Dont know what car or what your goals are to select cam. budget? roller / flat tappet

the old H-O racing HC-02 (RA3/ 71 -72 HO ) would be nice. a touch on the aggressive side for a350 but manageable.

need more info . prob best to talk to cam manuf or place you were to buy the cam. Just dont get a chevy cam. will cost more, but worth it.

Sorry, I was kinda vague...

Looking for something in the 285 duration advertised range & 460 ish lift that will allow me to use my stock turbo 350's torque converter.

It'll be a weekender street cruiser regular driver but not daily

Flat tappet in a 67 firebird with a fresh 70 pontiac 350 bored 030 over with surfaced not shaved heads & a turbo 350 stock converter...B&M shift kit


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