6.0 Max Effort Build Questions
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Joined: Sep 2013
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6.0 Max Effort Build Questions I plan on redoing the LY6 in my car this winter. I would like to do a N/A max effort build as the car is mainly used as a 1/8 mile car. I have a few questions regarding raising the compression.
I'm looking into the Cam Motion Race Day LS cam (238/252 108.5+3.5) .621 .604 I'm currently at 9.6:1 compression which is stock for the ly6 and this cam recommends 11.75-13. What would be the best way about raising my compression, do I get new pistons, shave my heads some and get a thinner head gasket or a little bit of all 3? I know I will most likely have to flycut which is fine.
If any one else has any different ideas regarding cam or compression I am open to all suggestions. The main goal is to get my car into the high 6's.
The car is a 1984 Monte Carlo SS
3460lbs
6.0
L92 heads
BTR .660 springs
Victor JR intake with elbow
1 7/8" long tube headers
Full 3" exhaust
28" tall rear tire
3.89 gears
4k stall which will get changed depending on cam chosen
TH350
The car has been a best of 7.35 @93.9 with a BTR LS3 stage 4 cam, I changed to a Cam Motion Junk Yard Dog hoping for gains as it was designed for a single plain but the car lost ET and MPH. The best it ran with the cam motion was 7.46@90.8
I'm looking into the Cam Motion Race Day LS cam (238/252 108.5+3.5) .621 .604 I'm currently at 9.6:1 compression which is stock for the ly6 and this cam recommends 11.75-13. What would be the best way about raising my compression, do I get new pistons, shave my heads some and get a thinner head gasket or a little bit of all 3? I know I will most likely have to flycut which is fine.
If any one else has any different ideas regarding cam or compression I am open to all suggestions. The main goal is to get my car into the high 6's.
The car is a 1984 Monte Carlo SS
3460lbs
6.0
L92 heads
BTR .660 springs
Victor JR intake with elbow
1 7/8" long tube headers
Full 3" exhaust
28" tall rear tire
3.89 gears
4k stall which will get changed depending on cam chosen
TH350
The car has been a best of 7.35 @93.9 with a BTR LS3 stage 4 cam, I changed to a Cam Motion Junk Yard Dog hoping for gains as it was designed for a single plain but the car lost ET and MPH. The best it ran with the cam motion was 7.46@90.8
I would try to get by with JUST the new pistons and thinner gaskets and try to end up with quench just slightly below .035".
KW
I would do that cam... but as a LLSR from Cam Motion. Kip and company can get you a package deal. The L92 heads flow awesome above .600... so use their advantage. And when combined with a single plane, a solid roller works even better.
But I would try to get compression up to 11.5:1 and quench around .030-.035. So new pistons, shaving, and new gaskets should all be in the works.
And I'd restall to 4400 at least.
But I would try to get compression up to 11.5:1 and quench around .030-.035. So new pistons, shaving, and new gaskets should all be in the works.
And I'd restall to 4400 at least.
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Joined: Apr 2017
Posts: 948
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Wiseco's Pro Tru pistons are cheap and feature a 4cc dome. That should get you close to 11:1 and then you can mill the heads without worrying too much about PTV since they have valve reliefs.
I plan on redoing the LY6 in my car this winter. I would like to do a N/A max effort build as the car is mainly used as a 1/8 mile car. I have a few questions regarding raising the compression.
I'm looking into the Cam Motion Race Day LS cam (238/252 108.5+3.5) .621 .604 I'm currently at 9.6:1 compression which is stock for the ly6 and this cam recommends 11.75-13. What would be the best way about raising my compression, do I get new pistons, shave my heads some and get a thinner head gasket or a little bit of all 3? I know I will most likely have to flycut which is fine.
I'm looking into the Cam Motion Race Day LS cam (238/252 108.5+3.5) .621 .604 I'm currently at 9.6:1 compression which is stock for the ly6 and this cam recommends 11.75-13. What would be the best way about raising my compression, do I get new pistons, shave my heads some and get a thinner head gasket or a little bit of all 3? I know I will most likely have to flycut which is fine.
