Ls3 with Ls7 heads
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Joined: Aug 2016
Posts: 86
Likes: 5
From: TX & Europe
ls9 heads are designed for forced induction so i dont think there will be much gains if hes going to use it NA and correct me if Im wrong but I remember reading something like that ls9 has larger head bolts than rest of the ls blocks
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Joined: Aug 2005
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From: Hudson WI
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Racer
Joined: Jan 2015
Posts: 375
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From: San Antonio TX
Yes, the valves will barely clear the cylinder bores.
But......what I was cautioned against, was that the valves would be so shrouded by the cylinder walls that there would be little (if any) to be gained by the swap.
So.....if you do the swap, I would be interested at your results do it.....do it.....do it......
KW
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Joined: Aug 2005
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From: Lewisville TX
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I believe MAST makes a small bore LS7 head for the LS3 if I am not mistaken.
Yes the LS7 head will bolt onto the block, but I didn't think the valve would clear on it, but I haven't tried it. Even if it did, like the others have said it is going to be blocked on that side against the cylinder wall I don't know how well it is going to flow.
Yes the LS7 head will bolt onto the block, but I didn't think the valve would clear on it, but I haven't tried it. Even if it did, like the others have said it is going to be blocked on that side against the cylinder wall I don't know how well it is going to flow.
Racer
Joined: Jan 2015
Posts: 375
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From: San Antonio TX
And Texas Speed, as well.
https://www.texas-speed.com/p-3948-p...ore-heads.aspx
And as long as you're shelling out almost $3K for a set of heads, you might as well call/email Tony Mamo and have him send you one of his ported LS7 MSD intakes....
http://www.mamomotorsports.com/
KW