CRANKSHAFTS
Chevrolet Small Block (Cont.) Forged Steel Crankshafts - Cont. Howards 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 chamfered bearings, precision CNC-machined, micro polished. For 750+ horsepower applications.
Min. Rod Length
Rod Pin
Rear Main Seal Balance
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description Track Smart 3 Track Smart 3 Track Smart 3 Track Smart 3 Track Smart 3 Track Smart 3 Track Smart 3
Stroke 3.480" 3.750" 3.750" 3.875" 3.875" 4.000" 4.000"
Main
HRCH353485712T HRCH353756012T HRCH403756012T HRCH353876012T HRCH403876012T HRCH35406012T HRCH404006012T
5.700" 2.100" 350 6.000" 2.100" 350 6.000" 2.100" 400 6.000" 2.100" 350 6.000" 2.100" 400 6.000" 2.100" 350 6.000" 2.100" 400
2-Pc. 2-Pc. 2-Pc. 2-Pc. 2-Pc. 2-Pc. 2-Pc.
Int. Int. Int. Int. Int. Int. Int.
N/A N/A N/A N/A N/A N/A N/A
N/A N/A N/A N/A N/A N/A N/A
K1 Technologies Features: Premium 4340 steel, core nitride hardened, stress-relieved, gun- drilled rod and mains, properly placed counterweights, large fillet.
Min. Rod Length
Rod Pin
Rear Main Seal Balance
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description Lightweight Lightweight
Stroke 3.480" 3.750"
Main
K1T012DAD348 K1T012DAD375
5.700" 2.100" 350 5.700" 2.100" 350
2-Pc. 2-Pc.
Int. Int.
1900 1900
51-54
55
Lunati Signature Series 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 Length
Rod Pin
Rear Main Seal Balance
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description
Stroke 3.875" 4.000"
Main
LNT60138751 LNT60240001
Signature Series Signature Series
6.000" 2.100" 350 6.000" 2.100" 400
2-Pc. 2-Pc.
Int. Int.
N/A N/A
N/A N/A
Manley 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.
Min. Rod Length
Rod Pin
Rear Main Seal Balance
Target Bobweight Grams
Approx. Weight Lbs.
Part No.
Description Lightweight IMCA Legal Lightweight Lightweight
Stroke 3.480" 3.480" 3.750" 4.000"
Main
MAN190190 MAN190310* MAN190150 MAN190130
5.700" 2.100" 350 5.700" 2.100" 350 5.700" 2.100" 350 6.000" 2.100" 350
2-Pc. 2-Pc. 2-Pc. 2-Pc.
Int. Int. Int. Int.
1750 1800 1800 1800
44-46 48-50 49-51 49-51
* Note: The two center rod journals are not gun drilled. Rule legal in IMCA Hobby Stock and Sport Modified.
2018 ENGINE BUILDER CATALOG
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