• 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

• New cast steel crankshaft internally balanced. Link to Flywheel
• New 4340 forged connecting rods
• 150,000 psi rod bolts
• Forged flat top Pistons
• Hastings moly rings
• Rotating assembly balanced to within 2 grams
• Melling high volume oil pump
• Flat tappet hydraulic lifter .544 intake lift, .547 exhaust lift
• 226 intake, 236 exhaust duration @ .050, 112 degrees lobe separation
• Heavy duty double roller (high performance) timing set

• GM cast iron oval port cylinder heads with screw-in studs and guide plates
• 1.509 dia. Valve springs w/ damper. Hardened retainers & keepers. 2.25 swirl
• polished intake valves, 1.88 swirl polished exhaust valves
• Elgin hardened push rods
• Long slot rockers with postitive lock adjusting nuts

• Marine intake manifold
• 9.0 to 1 compression
• Chrome valve covers
• Cad plated marine oil pan
• Brass freeze plugs
• All engines are dyno tested on state-of-the-art DTS dyno and come with
• a complete dyno sheet
• Marine 800 CFM carburetor
• Marine mechanical fuel pump
• Ignition system w/ plug wires and coil

12 month unlimited hour

Link to Engine Installation Guide