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Old 12-11-2020, 12:47 AM   #36
Greasey Harley
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Join Date: May 2013
Location: Post Falls, ID
Posts: 884
Re: Rebuilt 350 - detonation --> Cam swap?

New plan;
Lunati Voodoo cam 10120702
Intake Duration at 050 inch Lift:219
Exhaust Duration at 050 inch Lift:227
Duration at 050 inch Lift:219 int./227 exh.
Advertised Intake Duration:262
Advertised Exhaust Duration:268
Advertised Duration:262 int./268 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:0.468 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:0.489 in.
Valve Lift with Factory Rocker Arm Ratio:0.468 int./0.489 exh.
Lobe Separation (degrees):112

Fel-Pro 1142-026 PermaTorque Multi-Layer Steel Head Gasket
.026 installed thickness

Should yield .046 quench
10.02:1 compression
219 Intake Duration at 050 inch Lift

Hopefully this will wake the old truck up. It will certainly sound cooler.

I did limit the mechanical advance in the distributor to +16°, I will likely need to adjust that to around +20°-22° with the new configuration. We'll see
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Last edited by Greasey Harley; 12-11-2020 at 01:35 AM.
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