CRG Discussion Forum
Camaro Research Group Discussion => General Discussion => Topic started by: red69 on January 01, 2019, 12:05:05 AM
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Rebuilt my 69 Z engine this past year. Been in the car for 35 years and I decided to go through it. Only variations from stock specs are .040 overbore, 3927140 off road camshaft, stiffer valve springs, 69 GM crossram, and 1 5/8"primary 3" collector equal length headers. Best numbers were 370 lbs. torque @5700 and 417 H.P. @ 6700.
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Very impressive HP numbers! What ignition are you running? I'm about to do a similar set up on my Z with a Vintage T.I. set up.
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Rebuilt my 69 Z engine this past year. Been in the car for 35 years and I decided to go through it. Only variations from stock specs are .040 overbore, 3927140 off road camshaft, stiffer valve springs, 69 GM crossram, and 1 5/8"primary 3" collector equal length headers. Best numbers were 370 lbs. torque @5700 and 417 H.P. @ 6700.
Compression ratio?
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Ignition is stock distributor and coil, plugs are 44 Autolite, 36 total advance. Compression is 11.1, the combustion chambers are a little big, came that way from factory, and I wanted to run a composite head gasket, so I had J&E make pistons to my specs.