LO3 valve size?
Thread Starter
Member
Joined: Jul 2006
Posts: 186
Likes: 4
From: waterford, MI
Car: 89 RS
Engine: 305 carbed
Transmission: 700R4
Axle/Gears: 3.42 auburn posi
LO3 valve size?
i used to have my cylinder head casting numbers handy but i forgot what they are...89 LO3 wanna know what number they are and the valve size...
Senior Member
Joined: Mar 2001
Posts: 849
Likes: 2
From: MA
Car: 93 GM300 platforms
Engine: LO3, LO5
Transmission: MD8 x2
Re: LO3 valve size?
Yes they would fit, but it's not worth doing unless you port them and grind the end of the swirl ramp down so that it's not visible from the port side. In stock form, the major flow impediment is the ramp end and the sharp-edge boss for the valve guide. The valve diameter is not.
Thread Starter
Member
Joined: Jul 2006
Posts: 186
Likes: 4
From: waterford, MI
Car: 89 RS
Engine: 305 carbed
Transmission: 700R4
Axle/Gears: 3.42 auburn posi
Re: LO3 valve size?
ok cool cuz my plan is to take those heads off my camaro, have them ported and install the 194 intakes and put them on my 350 S-10, for the bump in compression ratio...going from 65CC down to 58 will give a good increase not to mention the better flow from ported heads.
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