17802826 - COPO LS 327-2.9L S/C 500hp Crate Engine

ENGINE:

Chevrolet Performance LSX cast-iron block with steel main caps
4.065" bore x 3.150" stroke
Static compression ratio - 10:1 nominal
Callies 4340 crankshaft - double-keyed snout
Callies 4340 H-beam Ultra rods
o 6.350" length
o .928" pin bore diameter
Clevite H-Series heat-treated tri-metal rod and main bearings
Mahle 2618 alloy forged domed pistons
o Graphal coating
o Hard-anodized top ring groove
o Friction-coated skirts
Mahle .043" x .043" x 3mm piston rings
o Ductile iron top with radius molybdenum face
o Plain cast-iron tapered 2nd
o Chrome-plated oil rails with low-tension expander
COMP Cams steel billet hydraulic roller camshaft
o Duration -- 246?/254? @ .050" lift
o Theoretical valve lift -- .630"/.630"
o Lobe centers -- 117?

VALVETRAIN:

Chevrolet Performance "Ceramic Ball" high-rpm hydraulic roller tappets
3/8" diameter LS7 pushrods
1.8:1 ratio LS7 rocker arms with roller trunions
PSI "Max Life" beehive valve springs
Hardened steel spring seats
Lightweight steel retainers
Fully CNC'ed aluminum cylinder heads -- based on LS7
275 cc nominal intake port volume
89 cc nominal exhaust port volume
70 cc nominal combustion chamber volume
Del West titanium intake valves -- 2.200" head diameter x 7mm stem
Lightweight sodium-filled exhaust valves -- 1.615" head diameter x 7mm stem
Fel-Pro Performance multi-layer steel head gaskets with raised cylinder sealing bead
Internal wet sump oil pump
Deep-sump cast aluminum oil pan --
6-quart capacity
ATI Performance Products SFI-approved damper -- 10-rib shell
2.9L Whipple twin-screw supercharger
Whipple billet throttle body
327/500 -- 109mm round blade

FUEL SYSTEM:

High-impedance fuel injectors
o 80 lb/hr @ 43.5 psi with EV1 connector

ENGINE CONTROLS & IGNITION:

Cable-actuated throttle
Production LS7 ignition coils
Production LS7 secondary wires
GM sensors