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Chevy Small Block Dyno Tests - Old School Meets New

402CI BUILD SHEET
Specifications not listed are the same as stock. Except as noted, all dimensions are in inches or fractions thereof. All prices sourced through Turn Key Engine Supply, Summit Racing, JEG's, and Scoggin Dickey Parts Center.
Displacement402ci
Bore x Stroke4.00x4.00
Compression 11:1
Rod center-to-center6.125
Piston deck height-0.012
Chamber volume62cc
Rod bearing clearance0.0028
Crank endplay0.004
Piston ring endgap0.023 top; 0.023, second
Main bearing cap torque65 ft-lb (moly-lube)
Main bearing/cross-bolt22 ft-lb (moly-lube)
Rod bolt torque50 ft-lb (moly-lube)
Head bolt torque65/70 ft-lb (moly-lube)
Henry's Cost
ManufacturerPart NumberDescriptionPrice
ARP243-4317Head Stud Kit254
Comp Cams54-446-11XER281HR407
54-448-11XER287HR(or) 407
875-16R-Series lifters246
13755-KIT1.75 rocker kit487
7955-165/16-inch pushrods134
Dart11021122Pro 1 LS11,620
Edelbrock2908Victor Jr. LS1 manifold w/module642
LunatiEA036-395Rotating assembly3,584
MSD Ignition82458Coil packs579
320798.5mm Super Conductor wire set98
Turn Key Engine Supply12568950LS2 block995
51611Chrome balancer280
SD7245Double-roller timing chain84
12558936Steel head gaskets 66
Total$9,476

WHAT'S IT FLOW?
DART Pro 1 LS1
CFM at 28 inches H20
LiftIntakeExhaust
0.200144109
0.300202154
0.400254187
0.500290205
0.550301210
0.600313214

CAMSHAFT SPECIFICATIONS
Cam I
ManufacturerComp Cams
Part Number54-446-11
TypeHydraulic roller
Valve lift at 0.0500.595/0.598 inch, intake/exhaust(factory rockers)
Duration at 0.050232 /234 degrees, intake/exhaust
Lobe separation112 degrees
Cam II
ManufacturerComp Cams
Part Number54-448-11
TypeHydraulic roller
Valve lift at 0.0500.605/0.609 inch, intake/exhaust(factory rockers)
Duration at 0.050238/240 degrees, intake/exhaust
Lobe separation112 degrees

Valve lift at 0.0500.605/0.609 inch, intake/exhaust(factory rockers)
Duration at 0.050238/240 degrees, intake/exhaust
Lobe separation112 degrees


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