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LS1 Crate Engine

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Chevy 402 CI Stroker LS1 Aluminum Long Block For Forced Induction

Can Handle up to 18 Lbs of Boost

Block
New LS2 Aluminum Block (requires LS2 lifter valley plate)
One piece rear main seal 4 bolt main
 
Cylinder Heads
72cc Aluminum LS Heads
Titanium Retainers
Dual Valve Springs
Hardened Locks
3 angle competition valve job
 
Valve Train
Performance Hydraulic Roller Cam 225/229 580/ 590  114
High Performance Hydraulic Roller Lifters.
Performance Roller Timing Chain
1.7 Ratio Roller Rocker Arms
 
Rotating Assembly
Keith Black Forged Pistons  8.9:1 CR
Forged Full Floating H beam Rods
4340 Forged Stroker Crankshaft
Internally Balanced rotating assembly
 
(No core return required)
 
Optional Upgrade (call to add to order)
ARP Main Studs Installed $225
ARP Head Studs Upgrade $259
Aluminum Roller Rocker Upgrade $425
CNC Ported Heads stage 2 $1199
CNC Ported Heads stage 3 $1299 (Perfect for forced induction)

Crate Engine Cost: $8,999


Disclaimer

Promar Reserves the right to change manufacturers and specs without notice. HP and TQ ratings are based on actual results on a engine dyno with open headers in controlled environment tuned for maximum performance.
 

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