Page 19 - 2018 Racecar Engineering Engine Parts and Accessories Catalog

CRANKSHAFTS

Chevrolet Big Block (Cont.)
Forged Steel Crankshafts - Cont.
Lunati
Signature Features: Premium 4340 non-twist forged steel, heat-
treated, stress-relieved, properly placed profiled counterweights, nitride
hardened, lightening holes in throws, gun-drilled mains, .125" radii for
use with narrowed bearings, magnafluxed, precision ground and mirco-polished.
Min. Rod Rod Rear Target Approx.
Part No. Description Stroke Length Pin Main Main Seal Balance Bobweight Grams Weight Lbs.
Signature Series, Center
LNT60442502 4.250" 6.385" 2.200" 2.750" 2-Pc. Int. N/A N/A
Counterweights
Signature Series, Center
LNT60445002 4.500" 6.535" 2.200" 2.750" 2-Pc. Int. N/A N/A
Counterweights
Scat 4340 Pro Series
Standard Weight Features:- 4340 forged steel, heat-treated, nitride
hardened, large fillet radii on all journals, lightening holes rod journals,
straight shot & chamfered oil holes, precision ground and micro-pol-
ished. Lightweight Features: - Same as standard, reduced rotating
weight weight design with aero-wing counterweights. Recommended for use up to 1500 HP.
Min. Rod Rod Rear Target Approx.
Part No. Description Stroke Length Pin Main Main Seal Balance Bobweight Grams Weight Lbs.
Standard Weight,
SCA4-454-4000-6135 4.000" 6.135" 2.200" 2.750" 2-Pc. Ext. 2350 70
Early Style
Standard Weight,
SCA4-454-4000-6135-L 4.000" 6.135" 2.200" 2.750" 1-Pc. Ext. 2350 70
Late Style
Standard Weight,
SCA4-454-4250-6135 4.250" 6.135" 2.200" 2.750" 2-Pc. Ext. 2350 70
Early Style
Standard Weight,
SCA4-454-4250-6385 4.250" 6.385" 2.200" 2.750" 2-Pc. Ext. 2350 70
Early Style
Lightweight, Early
SCA4-454-4250-6385-2 4.250" 6.385" 2.200" 2.750" 2-Pc. Ext. 2350 65
Style
Chevrolet Diesel Duramax 6.6L
4340 Forged Steel Crankshaft
Callies
Compstar Diesel Features: Spec 4340 material, multi heat-treated, double stress relieved, deep nitride hardened, large
radii in all journals, keyed shear proof timing gear fit, drilled rod journals, dual keyed damper fit, accepts OEM post and
flange bolts, accepts OEM flywheels/flexplates, machined flow, main bearing oil holes with lead-ins for enhanced cold start
oil, precision ground and mirco-polished to 6 Ra. Conservatively rated for 800 HP & 800 ft./lb. torque.
Min. Rod Rod Rear Target Approx.
Part No. Description Stroke Length Pin Main Main Seal Balance Bobweight Grams Weight Lbs.
CALD333M81-CS Duramax 3.898" 6.418" 2.480" OEM OEM Ext. (A) 84
(A) No specific bobweight listed due to many rod lengths depending on application. Can be balanced front or rear.

Chrysler-Mopar Small Block 318-360 A-Engine

Cast Steel Crankshafts
Eagle
“ESP” Features: .092" radius on rod and main journals, rear seal and snout, compatibility with standard OEM style bearings.
Min. Rod Rod Rear Target Approx.
Part No. Description Stroke Length Pin Main Main Seal Balance Bobweight Grams Weight Lbs.
EAG103403310 340 Replacement 3.310" 6.123" 2.125" 2.500" 2-Pc. Int. 2050 54
EAG103603580 360 Replacement 3.580" 6.123" 2.125" 2.810" 2-Pc. Int. 2050 54
EAG103604000 360 Standard Weight 4.000" 6.123" 2.125" 2.810" 2-Pc. Int. 2050 54
18 2018 ENGINE BUILDER CATALOG