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Crankshaft 81.3 Stroke En40b Steel S Crank Heat Treated

Crankshaft 81.3 Stroke En40b Steel S Crank Heat Treated

Crankshaft 81.3 Stroke En40b Steel S Crank Heat Treated
Selected: 81.33 mm stroke
Part No: C-AEG479
$3890.95
Qty:
Fits the following:
Classic Mini

Forged Nitrided, 81.33mm stroke, cross drilled, 1.625" "S" big end journal for 1275 S block with extra strong key for timing wheel fitted.

Forged-YES forged- EN40B steel nitrided cranks are considered the ultimate in specification, even over the "billet" type. This is mainly because the grain pattern of a forging follows the shape of the webs and bearings whereas the billet type is machined across the grain. Heated for maximum durability, these are machined to fit mains width of the Cooper S block only.

All cranks have been re drawn to benefit from latest technology by having the larger crank webs designed to reduce whip and resistance at high revs giving smoother running and easier balancing, plus being mass centre balanced.

The bored holes for the big ends reduces weight of the crank and does not require drilling through the largecounterr balance C shape webs

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Related Technical Articles:
Classic Mini Cooper Crankshafts & Bearings -page 36
Created: January 03, 2019
Stock or high performance crankshafts for Minis from 1959 thru 2000 are available new or reground. Straight rod or conventional crankshafts are available for the 1275cc engine. Also see our complete selection of crankshaft bearing for all the various engine sizes.
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