383Dualcarb EMA - Chevrolet Turnkey 383 Dual 4 Bbl Carb Alloy Heads 420+HP 450+ Ft/Lb @5400RPM

Product Information

These BluePrint Engines GM 383 c.i.d. stroker base crate engines daul x 4bbl carb with aluminum heads put out some ground-pounding horsepower.

BLOCK:

• 4 bolt main 1pc rear seal block w/Passenger side dipstick only
• 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 cast steel crankshaft
• Flat top hypereutetic pistons
• Chevy heavy beam rods with 150,000 psi bolts
• Hastings Moly rings
• Balanced rotating assembly
• Melling high volume oil pump
• Flat tappet camshaft
• Long slot, stamped steel rockers
• Heavy duty double roller timing set

CYLINDER HEADS:

• BluePrint aluminum
• 195cc
• 1.25 diameter valve springs
• Hardened retainers and springs
• 2.02 swirl polished intake valves
• 1.60 swirl polished exhaust valves
• Hardened push rods

A TON OF EXTRAS:

• 10 to 1 compression
• New chrome valve covers
• Brass freeze plugs
• Dyno tested

CRITICAL SPECS:

• CAM: .480 Int / .486 Exh & 229 Int / 230 Exh duration @ .050
• HORSEPOWER: Approx. 420 @ 5700 rpm
• TORQUE: Approx. 450 @ 4400 rpm
• COMP RATIO: 10 to 1 - for this crate engine we recommend 91 octane fuel.
• IGNITION TIMING: 34 degrees total (at 4000 RPM)