JDM Engineering Boss 323 cu in. Modular Stroker Shortblock!!

JimIII@JDM

Senior Member
Official Vendor
S197 Team Member
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We're baaaacckk!!! That's right after over a year of limited resources with the Steel Forged Stroker 3.750" crankshafts we have found a new source and can offer our Stroker Rotating Assemblies and Shortblocks! This new Steel Forged Crank is sourced from a U.S.A Manufacturer and industry leader in performance parts. Not Eagle which some consider the inferior brand. This crank is machined to the quality specification if not better than Kellogg's which is what we used prior.

We just built this Shortblock here in house for a customer and it is the first we put into regular production with the new crank. We have run and tested said crank in a race vehicle for almost 2 full race seasons now. After rigerous testing with nearly 1000 HP built 3V engine we are confident to introduce this in our engine line up. The rest of the Shortblock includes the Boss 3.700" Big Bore Cast Iron Block, Manley H Beam R series Rods, Manley Forged 3.700" bore pistons, Moly Rings, and Speed Pro Performance bearings, all same as used in our prior JDM 298 and 302 Shortblocks that we offered from 2005 until 2013.

At the moment we can offer several varieties to our customers.

For those of you who are looking to Rebuild your stock bottom end with forged parts. We have our Stroker 298 Rotating Assembly which includes:


JDM 298 Stroker Rotating Assembly $2,895.00
  • Steel Forged 3.750" Crankshaft
  • Manley H Beam 4340 R series Rods
  • Manley Forged Aluminum Pistons (bore/compression to spec)
  • Total Seal Moly Piston Rings
  • Speed Pro Main and Rod Bearings
  • GT500 Oil Pump w/ Pick up tube
If you send us your block we can Inspect, Clean, Hone, Balance, and Assemble it into a complete Shortblock for $4,395.00

We can also build a Complete Shortblock using the Boss 3.700" big bore cast iron block M-6010-BOSS50 for $5,895.00 which comes with 1 year warranty and 1000 HP rating!

Crank and Rotating Parts are available with 7-10 business days. Custom pistons can take 3-6 weeks to be made. Shortblock turn around time is expected 4-8 weeks depending on availability of parts.

Thanks,

JimIII
JDM Engineering
732-780-0770

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