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
278/288 340/352 .752/.722 110/106
This mechanical roller cam in an injected 511 cu in 455 Olds engine with DMR ported aluminum heads made 757 horsepower @ 6100 RPM and 713.7 torque @ 5000 RPM using 13:1 compression on 110 octane pump gas. Needs ported heads that flow in the 385 CFM range. Excellent for bracket racing use. Needs a 4500+ converter, intake, headers and 4.88+ gears. Rough idle.
