[rigon4]

wild i have the pressure set at 6 psi and did not think to up it at the track and the motor is a GMPP off road 502


502 HO Tech Specs


Block Part Number: 10237292

Block Type: Cast iron with 4-bolt main caps

Bore x stroke (in): 4.47 x 4.00

Camshaft duration (@.050 in) 211 degree intake / 230 degree exhaust

Camshaft lift (in): .510 intake / .540 exhaust

Camshaft Part Number: 24502611

Camshaft type: Hydraulic roller

Compression ratio: 8.75:1

Connecting Rod Part Number: 10198922

Connecting rods Type: Forged steel, shot peened

Crankshaft Part Number: 10183723

Crankshaft Type: Forged steel

Cylinder head Part Number: 12562920

Cylinder head Type: Iron rectangular port; 118cc chambers

Displacement (cu in): 502

Engine Name: 502 HO:

Engine type: Chevy big-block V-8

Ignition timing: 36 degree total @ 3600 rpm, with vacuum advance disconnected

Maximum rpm: 5500

Piston Part Number: 12533507

Pistons Type: Forged aluminum

Recommended fuel: 92 octane

Rocker arm ratio: 1.7:1

Rocker arms Part Number: 12523976

Rocker arms Type: Stamped steel

Valve size (in): 2.19 intake / 1.88 exhaust