124" Long Block (A Motor) Engine Assembly


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For you DIY guys, We now offer a replacement Long Block 124” engine. This includes a new case (with an MSO), that’s had the Timken insert done, bearing retainer installed, a new R&R forged crank that has been plugged, welded and dynamically balanced with H-beam rods, forged performance pistons, cylinders, cam bearings, 3 stage billet oil pump, gear drive cams, billet support plate, new lifters, new piston coolers, and our raised port stage 5 cast cylinder heads all assembled.

Swap your covers, add an induction system, an exhaust and GO! Oh yah, it carries a 1 year or 5000 mile warranty to boot!! Please select year group below. Available in black only.

Please allow 4 weeks from the time of purchase to fill your order.
  • Shipping Weight: 220lbs
  • 1 Units in Stock
  • Manufactured by: R&R Cycles Inc.

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This product was added to our catalog on Thursday 12 December, 2019.