Dyno day for the stroker!!
#91
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Joined: Apr 2015
Posts: 1,268
Likes: 68
X2. It prob only made 400 ponies and he is toó embarrassed to post the dyno sheet lol
#92
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Joined: Apr 2015
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I have a 68 z 28 cross ram with factory headers and the cam card suggested shifting at 5,200-8,400 rpm. the car doesn't stop pulling at high rpm, it just wants to keep on going. if gm is telling you 8400 then im sure there is a safety factory built in there. i wouldn't doubt for one minute that motor will run over 10,000 rpm.
#94
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Joined: Aug 2007
Posts: 979
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From: Wilson, NY
wish i could but i cant post pics here. it's a yellow with black stripes rs car, pre z 28 badge. the early ones only said 302 down in the front quarter. this car was a test mule for gm and its cross ram manifold. it has one of the 5 gm test manifolds with devcon wiring in it instead of the an actual cast manifold. it also has the test carbs that are 585's instead of the 600's that were used on the other 200ish manifolds. i'm told the headers are 1 of 22 sets produced for the cross ram.
#97
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#98
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Joined: Apr 2015
Posts: 1,268
Likes: 68
wish i could but i cant post pics here. it's a yellow with black stripes rs car, pre z 28 badge. the early ones only said 302 down in the front quarter. this car was a test mule for gm and its cross ram manifold. it has one of the 5 gm test manifolds with devcon wiring in it instead of the an actual cast manifold. it also has the test carbs that are 585's instead of the 600's that were used on the other 200ish manifolds. i'm told the headers are 1 of 22 sets produced for the cross ram.
#99
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Joined: Mar 2014
Posts: 346
Likes: 3
From: Pittsburgh, PA
I'm willing to bet he wasn't at the hp numbers he wanted ot expected. I'm running 10.4:1 in my motor that is close to his build and the machine shop is only estimating it at 550-600 hp. He was probably right around 500.


