4.070 Bore W LS7 Heads?! Is this possible?!
4.070 Bore W LS7 Heads?! Is this possible?! Looking at TSP Short Block 427 Its LS3 block Bored to 4.070
Im wanting A LS7 top end to put on this but I know the stock LS7 heads the exhaust Valves are going to be real close the the cyc wall
Ive been hearing MAST is or has come out w a LS7 head w small Exh Valves and TSP might be doing the same here soon
Anyone else have a update on any of this?
Thx!
Im wanting A LS7 top end to put on this but I know the stock LS7 heads the exhaust Valves are going to be real close the the cyc wall
Ive been hearing MAST is or has come out w a LS7 head w small Exh Valves and TSP might be doing the same here soon
Anyone else have a update on any of this?
Thx!
Looking at TSP Short Block 427 Its LS3 block Bored to 4.070
Im wanting A LS7 top end to put on this but I know the stock LS7 heads the exhaust Valves are going to be real close the the cyc wall
Ive been hearing MAST is or has come out w a LS7 head w small Exh Valves and TSP might be doing the same here soon
Anyone else have a update on any of this?
Thx!
Im wanting A LS7 top end to put on this but I know the stock LS7 heads the exhaust Valves are going to be real close the the cyc wall
Ive been hearing MAST is or has come out w a LS7 head w small Exh Valves and TSP might be doing the same here soon
Anyone else have a update on any of this?
Thx!
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RPM Motors Look here, hope this helps. ( RPM Motors ) ( Charlie Williams )
https://ls1tech.com/forums/generatio...ore-heads.html
http://forums.corvetteforum.com/c6-t...lable-now.html
https://ls1tech.com/forums/generatio...ore-heads.html
http://forums.corvetteforum.com/c6-t...lable-now.html
Last edited by jjtoma; Jul 29, 2011 at 10:42 AM.
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Looking at TSP Short Block 427 Its LS3 block Bored to 4.070
Im wanting A LS7 top end to put on this but I know the stock LS7 heads the exhaust Valves are going to be real close the the cyc wall
Ive been hearing MAST is or has come out w a LS7 head w small Exh Valves and TSP might be doing the same here soon
Anyone else have a update on any of this?
Thx!
Im wanting A LS7 top end to put on this but I know the stock LS7 heads the exhaust Valves are going to be real close the the cyc wall
Ive been hearing MAST is or has come out w a LS7 head w small Exh Valves and TSP might be doing the same here soon
Anyone else have a update on any of this?
Thx!
wcch and me have done it with plenty of bore clearance on his stage 3 ls3 heads on a 4.070 bore
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It's kinda weird, if you look at Procomp's literature, they state 270/71cc's.
But if you look at Hot Rod magazine's LS3/L92 head test, most ported heads, Procomp's CNC'd included, end up around 280/90+ cc's.
I'm kinda curious about this whole medium bore LS7 head thing given that EFI manifold'ed LS7's seem to rev higher than similarly built LS3/L92's. But if no one is going to build medium bore LS7 heads anymore then I guess it's a mute point and I should look more seriously at a 4.125+ block so that I can run any LS7 head.
But if you look at Hot Rod magazine's LS3/L92 head test, most ported heads, Procomp's CNC'd included, end up around 280/90+ cc's.
I'm kinda curious about this whole medium bore LS7 head thing given that EFI manifold'ed LS7's seem to rev higher than similarly built LS3/L92's. But if no one is going to build medium bore LS7 heads anymore then I guess it's a mute point and I should look more seriously at a 4.125+ block so that I can run any LS7 head.
http://www.rpm-motors-inc.com/produc...ackage-98.html
Check these out. RPM is an amazing shop with some awesome products.
Check these out. RPM is an amazing shop with some awesome products.
Heads Mast performance part #510-302
256cc int port vol flow 372 cfm
and 260 cfm on the exhaust, are just bolt on.
In comparison the stock ls3 with 360 cfm int port vol flow 319cfm intake
256cc int port vol flow 372 cfm
and 260 cfm on the exhaust, are just bolt on.
In comparison the stock ls3 with 360 cfm int port vol flow 319cfm intake
