Compstar SB Chevy 415/421 Stroker Kit, Balanced Assembly, CP Pistons 13.5:1 Dome

SB Chevy 415 421, Compstar Crankshaft 3.875 Stroke, 350 or 400 Main, Compstar 6.000 H Beam Rods, CP Pistons +5.1cc Dome, Rings, Bearings, Balanced Assembly

$3,044.95

View Similar Items

⚠ PROP 65 WARNING

⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.

Skip to the end of the images gallery

Skip to the beginning of the images gallery

Image is a representation of this item. Actual item may vary.

Description

CNC-Motorsports is please to offer 415/421 Callies Compstar rotating assembly kits. This kits is designed for performance application builds up to 900 horsepower. This kits offer 2618 forged pistons with premium steel gas nitrided piston rings for mild power adders. All kits come Internally balanced and are ready for you to assemble.

Callies Compstar 4340 forged steel crankshaft, 3.875 stroke, 2 piece rear main seal
Callies Compstar 4340 forged steel H beam connecting rods with ARP2000 rod bolts, 6.000 Length
CP-Carrillo Bullet pistons, 2618 forged, standard .150 wrist pins and spirol locks included *fits 23 degree heads* 1.062 C/H
CP Performance gas nitrided file to fit ring set 1.5 x 1.5 x 3.0mm
Race H series main and rod bearings included
Rotating assembly has been fully internally balanced in-house by CNC-Motorsports
Compression Ratio with 64cc: 13.5:1
Compression Ratio with 70cc: 12.4:1
Note: Small Base Circle camshaft required
Compression is figured at 4.125 bore, 0 deck, 4.190 bore gasket, .041 thick

Specifications

More Information
CNC Part Number	CS-421-CPD
Price	$3,044.95
Sold As	Kit
Manufacturer's Part Number	CS-421-CPD
Brands	Callies, Compstar, CP
Part Types	Engine Rotating Assembly Kit
Departments	Parts
Vehicle Make	Chevy SB
Balanced Assembly	Yes
Balance Type	Internal
Crankshaft Material	4340 Forged Steel
Crankshaft Stroke	3.875
Piston Brand	CP
Piston Type	Dome
Rod Length	6.000
Rear Main Seal	2 Piece
Piston Material	Forged
Custom Notices	⚠ PROP 65 WARNING

Upsell Products

PART #: PR-34265
34265 Pro Race Pro Sport SFI Harmonic Balancer, SB Chevy 283-350
$185.95
PART #: PRW-1835001
PRW 1835001 SFI Rated Chromoly Steel Flexplate, 168 Tooth, SB Chevy
$90.95
PART #: KEV-1070RH
1070RH Kevko Street Strip Drag Oil Pan SB Chevy 1980-85 Right Hand Dipstick
$299.99
PART #: DRT-31161211
Dart SHP Block 31161211 SBC 400 4.125 Bore 350 Mains
$2,299.99