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GM Small Block Engines - 2007 Crate Motor Buyers Guide
Gm Small Block Engines










490HP LT1 LONG-BLOCK
COMPANY: TPI Specialties Inc.
BLOCK: LT1, iron, used (converted to billet splayed mains)
DISPLACEMENT: 396ci (6.5L)
COMPRESSION RATIO: 11.0:1
CRANKSHAFT: 3.875-inch, Callies, forged
RODS: 5.850-inch, Manley Sportsmaster
PISTONS: 4.030-inch, diamond, custom forged dished
RINGS: Speed-Pro file fit plasma-moly
ROD BEARINGS: Clevite 77
MAIN BEARINGS: Clevite 77
CAM BEARINGS: Clevite 77
BOLTS: ARP rod and main, Manley head
HEADS: GM LT1, aluminum, CNC-ported
HEAD GASKETS: Fel-Pro
CAM: TPIS ZZ-409, hydraulic roller, 226/226 duration at .050, .520/.520-inch lift
LIFTERS: GM
PUSHRODS: Manley, 7.200-inch hardened one-piece 5/16
ROCKER ARMS: COMP Cams Pro Magnum, 1.6-ratio, full roller
VALVESPRINGS: Manley with titanium retainers
INTAKE MANIFOLD: no
THROTTLE BODY: no
FUEL INJECTORS: no
MAF: no
WIRING HARNESS: no
PCM: no
CORE CHARGES: block $250.00, heads $1,000.00
WARRANTY: 1 year (parts and labor)
PRICE: $8,500.00
COMMENTS: This is a long-block only, but can be upgraded to any level of completion.

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