Stock LS3 & Mast LS7 265cc
Stock LS3 & Mast LS7 265cc I've been searching for days and couldn't find any build or thread that spoke about this, I have a built 408 with mast ls7 265cc heads and now I want to put these heads to my ls3 stock bottom engine w/gt11 cam, has anybody had any PTV clearance issues when using the mast ls7 265cc heads without flycutting the pistons? Are you using 8.150 pushrods with 1.7 ls3 rockers? Which head gasket brand & thickness are you running? Thanks!
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Joined: Jun 2016
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From: Central Cal.
That is a very old Lingenfelter grind. They haven't come out with any thing new in over 10 years.
That wide an LSA will kill off any low end torque, The late IVC of 45.5 doesn't help things either
That wide an LSA will kill off any low end torque, The late IVC of 45.5 doesn't help things either
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Joined: Sep 2010
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I had this camshaft in my ls2 with the 243 heads.
I remember first driving it, immediately I noticed the throttle response was way down and the entire torque curve was soft.
The stock camshaft pulled harder the whole way through even though the lingenfelter camshaft made an extra 35hp.
This camshaft lasted about a month or two before I pulled it out.
I have so many bad memories. I have never had a camshaft that worked the way I wanted it too.
This was my first ever camshaft swap.
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Here's the only Lingenfelter cam I'd consider. https://www.lingenfelter.com/product...l#.XtWXEm5Fw5s It would need at least 4 degrees of advance which I'm guessing it doesn't have.
At least that one is done using Comp's LSL lobes and not the stupid high lift LSK lobes that most of their other cams use. I can't believe people still buy that crap.
At least that one is done using Comp's LSL lobes and not the stupid high lift LSK lobes that most of their other cams use. I can't believe people still buy that crap.
I've been searching for days and couldn't find any build or thread that spoke about this, I have a built 408 with mast ls7 265cc heads and now I want to put these heads to my ls3 stock bottom engine w/gt11 cam, has anybody had any PTV clearance issues when using the mast ls7 265cc heads without flycutting the pistons? Are you using 8.150 pushrods with 1.7 ls3 rockers? Which head gasket brand & thickness are you running? Thanks!
Head gasket thickness should not be determined by PTV. Measure the deck height of the pistons. Size your HG to achieve 0.035" net. Example -- if your pistons are .006 out of the hole (above deck), use a .041" HG.
Thanks to everybody who replied, I just bought the car which was built back in 2011 and was barely driven since then, I agree the GT11 is an old cam but I didnt buy it, I just purchased this cam 234/242 .626"/.626" 112LSA +4, both Mast and the guy who did me the cam say it will fit under stock non flycut pistons but I will double check it anyways