Discontinued Item: This item is discontinued. Please CALL to see if there is a replacement or an alternative.

Item # BP4961CT
Weighs 1.0000lbs.

4 Bolt Main .060 over block, two piece rear seal, drivers side dipstick
Square and parallel decked
Align honed main bearing bore
Cylinders honed on computer controlled machine to within .0002
straightness and roundness
Cylinders are sonic tested for thickness

Rotating Assembly:
New SCAT forged steel crankshaft internally balanced
New SCAT 4340 forged connecting rods
150,000 psi rod bolts
Probe forged flat top pistons
Hastings moly rings
Rotating assembly balanced to within 2 grams
Melling high volume oil pump
Flat tappet hydraulic lifter .566 intake lift, .566 exhaust lift
242 intake, 248 exhaust duration @ .050, 112 degrees lobe separation

Cylinder Heads:
AFR aluminum rectangular port cylinder heads with 305cc runners and 119cc chambers
1.509 dia. Valve springs w/ damper. Hardened retainers & keepers. 2.25 swirl
polished intake valves, 1.88 swirl polished exhaust valves
Comp cams hardened push rods
Jessel rocker arm system

A Ton Of Extras:
Edelbrock performer RPM airgap intake manifold
9.0 to 1 compression
Blueprint signature series polished aluminum tall valve covers
Milodon cad plated oil pan
Brass freeze plugs
All engines are dyno tested on state-of-the-art DTS dyno and come with a complete dyno sheet
30 month 50,000 mile warranty
Professional Products harmonic balancer

Critical Specs:
.566 Int / .566 Exh & 242 Int / 248 Exh duration @.050 112 degree lobe separation



Compression Ratio:
9.0 to 1

Ignition Timing:
16 to 18 Degree Initial / 36 Degree Total

This part fits most Chevrolet Cars and Trucks.; exceptions may apply. Please read the complete description to see if this part fits your specific vehicle and application.

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