
Engine Rotating Kits
A rotating assembly is the crankshaft, rods and pistons that turn combustion into motion, supplied as one matched set. Kits here cover small block and big block Chevy and Ford Windsor engines in several stroke and bore sizes. Check the engine family, stroke, bore, rear main seal style and whether you need a cast or forged set.
Showing 16 popular parts from 18 in this category. Search above or open the full catalog for the rest.


−15%Ford SB 289 302 Windsor 3.400" 347ci Forged Rotating Assembly Only
Available to order
−15%Chevy SBC 400 4.00" 427ci 2Pc RMS Forged Rotating Assembly Only
Available to order
−15%Chevy SBC 400 3.75" 400ci 2Pc RMS Forged Rotating Assembly Only
Available to order
−15%Chevy SBC 350 3.75" 383ci 1Pc RMS Forged Rotating Assembly Only
Available to order
−15%Chevy SBC 350 3.75" 383ci 2Pc RMS Forged Rotating Assembly Only
Available to order
−10%Chevy SBC 350 4.00" 427ci 2Pc RMS Forged Rotating Assembly Only
Available to order





−10%Chevy LS1 4.125" 393ci Forged Rotating Assembly Kit, 3.905
Available to orderMore in Complete Systems
Performance and aftermarket parts
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0 parts for Chevy, Ford, GM LS and Mopar builds, from gaskets to crate engines. Free shipping on orders over $150.
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Assembly · Complete systems
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Tools & resources
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Install guides, catalogs and engine calculators. The calculators are pre-filled with a typical 350 small block.