The following special custom cams have been dynoed and the proven horsepower/torque numbers are listed. All require an adjustable valve train.
[email protected] [email protected] Gross/Lift Lobe/Sep
248/256 298/306 .586/.583 110/106
This hydraulic roller cam in a 496 cu in 455 Olds engine with DMR ported aluminum heads made 549.6 horsepower @ 5200 RPM and 624.5 torque @ 4300 RPM using 10.5:1 compression on 92 octane pump gas. Needs ported heads that flow in the 300 CFM range. Excellent for performance street/strip use. Need a 2500+ converter, intake, headers and 3.73 gears. Lopey idle.
