Saturday Night Racer

Saturday Night Racer
http://www.latemodelracer.com/cgi-bin/yabb2/YaBB.pl
Saturday Night Racer >> RACE TECH >> 305 gm heads
http://www.latemodelracer.com/cgi-bin/yabb2/YaBB.pl?num=1250566019

Message started by hobby26b on 08/17/09 at 8:26pm

Title: 305 gm heads
Post by hobby26b on 08/17/09 at 8:26pm

Has anyone ever tried to run 305 cylinder heads on a 350 hobby motor.Or on any motor,how did it run?

Title: Re: 305 gm heads
Post by Andrew on 08/17/09 at 9:26pm

I had 305 heads on my mod when I bought it. I ran the whole first year with them. It ran great... on methanol no less. For the second year a buddy twisted my arm and I put his world products heads on. It did wake the car up. I would think for a hobby 305 heads would work fine, especially if you're on a budget, but I'm not a hobby driver either.

Title: Re: 305 gm heads
Post by 32MORGAN on 08/17/09 at 9:50pm

305's are 58 cc and that's pretty small when you have a 180 hot cranking comp rule and the hobbys have a flat top piston rule. even with custom cam grinds, i don't think you could bleed off the extra compression and that would kill power with the 4412. jmo

Title: Re: 305 gm heads
Post by 01M on 08/17/09 at 11:40pm

i had 305 58cc heads on my 350 0.40 over with flat top 4 valve relief pistons . only mods on the heads were screw in studs and guide plates. it had 210lbs. of compression and was a rocket. with a 4412