LT1/LT4/LT5 BoostPrepMAX Longblock (Gen.V LT)
Bore: 4.070"
Stroke: 3.622"
Connecting Rod Length: 6.125"
Displacement: 6.2L / 377c.i.
Piston Volume: -8.2cc or -20cc dish with valve reliefs
Compression Ratio:
10.9:1 with 59cc(LT1 Heads with -8.2cc dish pistons)
10.1:1 with 59cc(LT1 Heads with -20cc dish pistons)
9.6:1 with 65.5cc(LT4 heads with -8.2cc dish pistons)
9.1:1 with 65.5cc(LT4 heads with -20cc dish pistons)
Horsepower Rating: Up to 1200whp
Engine Block: New OEM LT1/4/5 Aluminum Block
Crankshaft: OEM Forged Gen V LT 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 LT1 or optional LT4 Heads
Valves:
LT1- 2.126" Hollow Stem Steel intake / 1.590" Sodium Filled Steel exhaust
LT4- 2.126" Titanium intake / 1.590" Sodium Filled Steel 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: 3/8 Diameter Chromoly Pushrods
Rocker Arms: New GM LT Rocker Arms w/ trunnion upgrade
Head Fasteners: ARP Head Studs
Head Gaskets: GM MLS Head Gaskets
Oil Pump: OEM GM Oil Pump
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