Page 198 - 2021-22_EngineCatalogAP

CRANKSHAFTS
Cast Steel Crankshafts - Cont.
Scat
Pro Stock features 9000 cast steel, precision-ground, micro-polished, factory balanced, 5.700" or longer rod, and is WISSOTA approved. Pro Comp features 9000 cast steel, precision ground, knife-edged counterweights, factory balanced, straight shot oil holes, micro-polished, and is IMCA and Racesaver approved.
Part No.
SCA9-10454 SCA9-454-4250-6135 SCA9-454-4250-6385
Description
Pro Stock Pro Comp Pro Comp
Min. Rod Rod
Stroke Length Pin Main 4.000" 6.135" 2.200" 2.749" 4.250" 6.135" 2.200" 2.749" 4.250" 6.385" 2.200" 2.749"
Rear
Main Seal Balance
2-Piece Ext. 2-Piece Ext. 2-Piece Ext.
Target Approx. Weight Bobweight Grams Lbs.
2350 65-67 2350 67 2350 67
Forged Steel Crankshafts
Callies
CHEVROLET BIG BLOCK
Compstar features spec 4340 material, mid-weight design, multi heat-treated,
double stress-relieved, nitride-hardened, properly placed counterweights profiled for
piston clearance, drilled rod journals, precision ground and micro-polished to 5 Ra. Stock Eliminator features spec 4340 material, built to NHRA Stock Eliminator exact requirements. Profiled for piston clearance, drilled rod journals, precision ground and micro-polished to 5 Ra. Magnum features ultra-pure AISI 4340 steel, triple heat-treated, nitride-hardened, gun-drilled mains, full profiled counterweights, precision ground and micro-polished to 5 Ra.
Part No.
CALBBO42B-MG CALBBP425-CS CALBBP42B-MG CALBBB42B-MG CALBBQ42B-MG CALBBS42B-MG
Eagle
Description
Magnum Compstar Magnum Magnum Magnum Magnum
Min. Rod Rod
Stroke Length Pin Main
4.000" 6.385" 2.200" 2.750" 4.250" 6.385" 2.200" 2.750" 4.250" 6.385" 2.200" 2.750" 4.375" 6.535" 2.200" 2.750" 4.500" 6.700" 2.200" 2.750" 4.750" 6.700" 2.200" 2.750"
Rear
Main Seal Balance
2-Piece Int. 2-Piece Int. 2-Piece Int. 2-Piece Int. 2-Piece Int. 2-Piece Int.
Rear
Main Seal Balance
2-Piece Int. 1-Piece Int. 2-Piece Int.
2-Piece Int. 1-Piece Int. 2-Piece Int.
2-Piece Int. 2-Piece Int.
Target Bobweight Grams
2350 2350 2350 2350 2350 2350
Target Bobweight Grams
2350 2350 2350
2350 2350 2350
2300 2425
Target Bobweight Grams 2150
Approx. Weight Lbs.
69 72 69 69 69 69
Approx. Weight Lbs.
70 70 72
72 72 72
75 78
Approx. Weight Lbs.
81
“ESP” features SAE 4340 steel non-twist forging, multi-stage heat-treat-
ed, stress-relieved, .125" radii for use with narrowed bearings, chamfered oil holes, shot-peened, nitride-hardened, X-rayed, magnafluxed, and sonic tested. Recommended for use up to 1500 HP.
Part No.
EAG445440026135 EAG445640046135 EAG445442546385
EAG445442526385 EAG445642526385 EAG445443756385
EAG445445006535 EAG450247506600
Description
Early Style
Late Style
Early Style
Early Style, w/Center Counterweights Late Style, Lightweight Early Style, w/Center Counterweights Early Style, w/Center Counterweights Early Style, w/Center Counterweights
Stroke
4.000" 4.000" 4.250"
4.250" 4.250" 4.375"
4.500" 4.750"
Min. Rod Rod
Length Pin Main
6.135" 2.200" 2.749" 6.135" 2.200" 2.749" 6.385" 2.200" 2.749"
6.385" 2.200" 2.749" 6.385" 2.200" 2.749" 6.385" 2.200" 2.749"
6.535" 2.200" 2.749" 6.600" 2.200" 2.749"
K1 Technologies
Feature premium 4340 steel, core nitride-hardened, stress-relieved, gun-drilled
rod and mains, properly placed counterweights, large fillet radii for use with narrowed bearings, straight hole rod oiling, magnafluxed, and micro-polished.
Min. Rod Rod Part No. Description Stroke Length Pin
K1T012GAG425 Standard Weight 4.250" 6.385" 2.200"
Main
2.749"
Rear
Main Seal Balance
2-Piece Int.
196 2021-22 ENGINE BUILDER CATALOG