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. These are all good ideas but we want a common intake to keep the package inexpensive. Rockers are part of this. Basically create a 1000hp head on a 500hp budget.
I did that
BTW if done I need a set Free for my idea...
The intake is common... You could raise the runner to C5r height and still use the Ls7 intake with a 5.9 inch valve so .300 higher than the standard ls7. ONLY DIFFERENCE IS THE PORT SIZE AND INTAKE BOLT HOLES. All Pro and Cary's c5r heads both used a typical ls7 intake with different mounting points for each head.
You can keep the rocker stands...Bigger spring pads and more material in the casting itself.
Raised runner with a typical ls7 raised runner raised more than the factory runner and still works with a factory ls7 intake? Valve length is 5.6 same as the FED F710. I know CID uses a 5.8 length valve. C5r used a 5.9 valve.
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Cary of ET performance saying he uses the same intake. Post #6
we do machine the ls7 bolt pattern in our c5r as a standard unless requested otherwise.
Add side cant also....You'd just need to use computer software for the design for Factory rocker arm placement.
The Elderbrock Ls3 heads use gm Factory LT architecture in its heads with a 11 degree valve angle and 2.x side cant and still uses factory rockers.
I made you a 1000 hp head on a 500 budget... you just need a thicker casting like Profiler who makes the C I D head or All Pro. Start off with a clean sheet not a factory based 5.2 inch length valve Ls7 head.
What runner size, chamber (cc), and valve sizes of the above pictured head. I’ve been on the fence about BR3 or even BR7-3 heads for my TT build but had yet to see anything from CID castings under 4.1 bore.
Thought about posting in the ls3 vs ls7 thread but that fella is looking for 4.125 bore heads so did not want to mis-direct it. I’m just trying to retain a fraction of info here.
What runner size, chamber (cc), and valve sizes of the above pictured head. I’ve been on the fence about BR3 or even BR7-3 heads for my TT build but had yet to see anything from CID castings under 4.1 bore.
Thought about posting in the ls3 vs ls7 thread but that fella is looking for 4.125 bore heads so did not want to mis-direct it. I’m just trying to retain a fraction of info here.
...IDK cc or valve sizes. CT porting and Greg G each do a Small Bore also Hooper to i think. Each head would be a custom order to match the combination.
I just finished dynoing a 2009 Z06 last night. Stock LS7 heads ported by Advanced induction. Car put down 643 rwhp and 547 torque with a MAMO ported MSD intake and Nick Williams 103 TB and 2" headers. That's pretty stout.
I just finished dynoing a 2009 Z06 last night. Stock LS7 heads ported by Advanced induction. Car put down 643 rwhp and 547 torque with a MAMO ported MSD intake and Nick Williams 103 TB and 2" headers. That's pretty stout.
09-12-2022, 10:23 AM
