Looking for an engine that will take you over the 1000hp mark without praying to the Horsepower gods that it stays together before every pass? Well look no further, our BoostPrep line of engines is exactly what you're looking for.

 

BoostPrep 416 Stroker LS3/LSA/LS9

 

Bore: 4.065"

Stroke: 4.000"

Connecting Rod Length: 6.125"

Displacement: 6.8L / 416c.i.

Piston Volume: Strictly Spec'd -9cc dish with valve reliefs

Compression Ratio:

10.5:1 with 70cc(LS3/LSA Heads with -9cc dish pistons)

10.3:1 with 72cc(Frankenstein M311 heads with -9cc dish pistons)

 

Horsepower Rating: Up to 1100whp

 

Engine Block: New OEM LS3 6.2L Aluminum Block

Crankshaft: New Callies Stroker Crankshaft

Pistons: Diamond Racing Forged Pistons

Connecting Rods: Callies Compstar H-Beam Connecting rods w/ ARP rod bolts

Main Fasteners: ARP Main Studs

Main Bearings: King XP-Series Race Bearings

Rod Bearings: King XP-Series Race Bearings

Cam Bearings: Durabond one piece bearings

 

Cylinder Heads: Strictly Spec'd CNC Ported LSA Heads

Valves: 2.165" intake / 1.590" exhaust

Valve Springs: .660" Lift Dual Valve Springs w/ Titanium retainers

Camshaft: Application Specific Spec'd Camshaft

Timing Chain: Katech C5-R Timing Chain

Lifters: OE Replacement LS7 Lifters

Push Rods: 5/16 Diameter Chromoly Pushrods

Rocker Arms: New LS3 Rocker Arms w/ trunnion upgrade

Head Fasteners: GM Head Bolts or Optional ARP Head Studs

Head Gaskets: GM MLS Head Gaskets

Oil Pump: Melling High Pressure Oil Pump

CONTACT US FOR SHIPPING INFO / REQUIREMENTS

BoostPrep 416 Stroker LS3/LSA Longblock

$12,750.00Price