Page 33 - 2021-22_EngineCatalogAP

CHEVROLET SMALL BLOCK
Forged Steel Crankshafts - Cont.
Eagle - Cont.
“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. Lightweight has the same features as standard, with gun-drilled mains and lightweight counterweight design. Featherweight has same features as standard, with gun-drilled mains and ultra-lightweight counterweight design. Armor Finish (AF) - Surface finishing process that results in an incredibly slick surface. Resembles a chrome finish.
Part No.
EAG435338756000 EAG440038756000 EAG435040006000 EAG440040006000 EAG440041256000
Description
Standard Weight Standard Weight Standard Weight Standard Weight Standard Weight
Min. Rod Stroke Length 3.875" 6.000"
3.875" 6.000" 4.000" 6.000" 4.000" 6.000" 4.125" 6.000"
Rod Pin Main
2.100" 350 2.100" 400 2.100" 350 2.100" 400 2.100" 400
Rod Pin Main
2.100" 350
Rear
Main Seal Balance
1-Pc. Int. 2-Pc. Int. 2-Pc. Int. 2-Pc. Int. 2-Pc. Int.
Rear
Main Seal Balance
1-Pc. Int.
Target Bobweight Grams
Approx. Wt./Lbs.
ZZ4 Replacement Forged Steel Crankshaft
Min. Rod Part No. Description Stroke Length GMP12670965 SBC ZZ4 Repl. Forged Steel 3.480" 5.700"
Howards
Target Bobweight Grams
Approx. Wt./Lbs.
Track Smart 3 features 4340 steel non-twist forgings, rough-machined process, double stress-relieved, properly placed profiled counterweights for piston clearance, nitride hardened, lightened holes in throws, large .125” radii for use with cham- fered bearings, precision CNC-machined, micro polished. For 750+ horsepower applications.
Part No.
HRCH353756012T HRCH403756012T HRCH353876012T HRCH354006012T
K1 Technologies
Description
Track Smart 3 Track Smart 3 Track Smart 3 Track Smart 3
Stroke
3.750" 3.750" 3.875" 4.000"
Min. Rod Length 6.000" 6.000" 6.000" 6.000"
Rod Pin Main
2.100" 350 2.100" 400 2.100" 350 2.100" 350
Rear
Main Seal Balance
2-Pc. Int. 2-Pc. Int. 2-Pc. Int. 2-Pc. Int.
Target Bobweight Grams
Approx. Wt./Lbs.
Features: Premium 4340 steel, core nitride hardened, stress-relieved, gun-drilled rod and mains, properly placed counter- weights, large fillet.
Part No.
K1T012DAD348 K1T012DAD375
Lunati
Description
Lightweight Lightweight
Stroke
3.480" 3.750"
Min. Rod Length 5.700" 5.700"
Rod Pin Main
2.100" 350 2.100" 350
Rear
Main Seal Balance
2-Pc. Int. 2-Pc. Int.
Target Bobweight Grams 1900 1900
Approx. Wt./Lbs. 51-54 55
Signature Series features premium 4340 non-twist forged steel, heat-treated, stress-relieved, properly placed profiled coun- terweights, nitride hardened, lightening holes in throws, gun-drilled mains, .125” radii for use with narrowed bearings, mag- nafluxed, precision ground, and micro-polished.
Min. Rod Part No. Description Stroke Length LNT60240001 Signature Series 4.000" 6.000"
Manley
Rod Pin Main
2.100" 400
Rear Main Seal 2-Pc.
Balance
Int.
Target Bobweight Grams N/A
Approx. Wt./Lbs. N/A
Features 4340 steel non-twist forging, heat-treated, precision ground, stress relieved, shot peened, nitride hardened, large fillet radii for use with narrowed bearings, gun-drilled rod journals, chamfered oil holes, magnafluxed, and micro-polished.
Part No.
MAN190190 MAN190310 † MAN190150 MAN190130
Description
Lightweight IMCA Legal Lightweight Lightweight
Stroke
3.480" 3.480" 3.750" 4.000"
Min. Rod Length 5.700" 5.700" 5.700" 6.000"
Rod Pin Main
2.100" 350 2.100" 350 2.100" 350 2.100" 350
Rear
Main Seal Balance
2-Pc. Int. 2-Pc. Int. 2-Pc. Int. 2-Pc. Int.
Target Bobweight Grams 1750 1800 1800 1800
Approx. Wt./Lbs. 44-46 48-50 49-51 49-51
† The two center rod journals are not gun drilled. Rule legal in IMCA Hobby Stock and Sport Modified.
CRANKSHAFTS
2021-22 ENGINE BUILDER CATALOG
31
1855 52 1900 57 1855 52 1900 57 1875 57
N/A N/A
N/A N/A N/A N/A N/A N/A N/A N/A