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Author Topic:   Head ? for a 383
mod15racing
Dirt Roller

Total posts: 12
posted April 04, 2005 10:09 PM  
I have a new sbc 383, cola crank scat 6.00 H beam's JE piston's 13 to 1 with 64 cc combustoin chamber's. around a .650 lift roller cam. we plan to turn the motor around 7800 to 8000 max. I am wanting to know if I should go with the 220 intake runner's 2.055/1.60 valves or the 230 intake runner's 2.08/1.60 valves. this motor is for a UMP mod.

mod15racing
Dirt Roller

Total posts: 12
posted April 04, 2005 10:13 PM  
forgot to add the motor will be ran on alky

chomme
Dirt Freak

Total posts: 300
posted April 09, 2005 10:47 PM  
I'd go with the 215s and the smaller valves. I believe valve shrouding would be an issue with the 230's in the smaller bore.

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