Valves
 

Well peeps I just put together my motor...302 GT40P heads that has been ported all the way open too 260cfm...1.7 rockers,+trick flow stage one cam .499/.510 lift,24lbs injec,73mm mass air meter,trick flow track heat intake,70mm throttle body...The only thing I forgot to do was check the valve to piston clearance...This is a stock botom end so wish me good luck...Bythe way i havent fire the car yet im still waiting to see if anyone no if this set up will be okay...

Re: Valves
 

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Re: Valves
 

I think you are good to go. Whats the duration of that cam at .050?

Re: Valves
 

the duration of the cam @.050 is .221/.225

Re: Valves
 

I cleared a .566/.566 218/224 cam with 2.02 1.60 valves and stock pistons. It was very close.

Re: Valves
 

damn thats okay i feel better now thanks man that helps me alot i just hope the set i got gives me a good number

Re: Valves
 

I'm not sure about the GT40 heads, but with stock pistons, I ran the stage one just fine.

Re: Valves
 

thats cool but what size roller rockers did u have USMC302 i have 1.7 roller rockers

Re: Valves
 

We used axle grease to check my P to V clearance on my motor with 58cc heads TFS #1 cam and 1.6 rockers, spun it over, pulled the head off and the valves didn't even have any grease on them!!
And we had it smeared on the piston pretty thick, so I think your OK too.

Re: Valves
 

all right that sounds like a good thing to do...that is one way of checking it cool thanks man...my total lift with 1.7 roller rocker is .531/.542

Re: Valves
 

We were running staggered rockers at that time. 1.7's on exhaust, 1.6's on intake.

Re: Valves
 

I have e7's with 1.7 rockers and the stage 1, all on a stock bottom end. I think you will be fine.

Re: Valves
 

the only thing that i need to fine out now is the gt40p heads that i have i dont know the cc's on the heads the heads were on the car when i both it and i dont know if its 64cc 60cc 58ccc or what so thats what i need to fione out now