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LS1 Crate Engine

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Chevy 427 CI Stroker LS1 Cast Iron 625HP 570FT/LBS TQ Long Block Naturally Aspirated

Block
New LSX Cast Iron Block (requires LSX lifter valley plate)
One piece rear main seal 4 bolt main
ARP Main Studs
 
Cylinder Heads
72cc CNC Ported Stage III Heads
Titanium Retainers
Bronze Guides
Dual Valve Springs
Hardened Locks
Ferrera Stainless Valves 2.08/ 1.60
3 angle competition valve job
ARP Head Studs
Cometic Head Gaskets
 
Valve Train
Comp Custom Hydraulic Roller Cam
High Performance Hydraulic Roller Lifters.
Performance Roller Timing Chain
Scorpion Aluminum Roller Rocker Arms
 
Rotating Assembly
Manley Forged Coated Pistons 10.6:1 CR
Forged Full Floating H beam Rods w ARP 2000 bolts
4340 Forged Stroker Crankshaft
Internally Balanced rotating assembly
 
(No core return required)

Crate Engine Cost: $12,999


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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