2.3 Stage 1 Shortblock Package

Powerful “Hell-Raiser”+850whp

SKU: 214 Category:


Looking for tons of torque and a nice, wide powerband for your daily driver or weekend race? Then look no further than our JAM 2.3 stroker shortblocks. They are built using the best components available along with our precision machine and assembly procedures. As with all or our engines, the 2.3 stroker shortblocks are internally balanced and all clearances are set to within .0001″. Our 2.3 shortblocks are designed to be used with the factory balance shafts are installed, which we modify to ensure their performance. The result is a torque-monster with proven reliability which runs smooth as silk. We offer these combinations for 6 and 7 bolt DSM engines as well as Evo 8/9.

Contact us for purchase: $2890.00

Our engines are custom built to order which ensures that it fulfills the customers’ performance goals.

The following services are performed to each block:

  • The block is completely disassembled and cleaned
  • Remove the block oilers, balance shaft brgs, galley plug
  • It is visually inspected
  • All threads are checked
  • Main bolt holes are tapped
  • Line bore specs are checked w/ARP main studs and recorded
  • The cylinders are sonic tested for thickness
  • Deck surface is square decked to a RA surface finish
  • The deck holes are bottom tapped for ARP head studs
  • The block is precision bored
  • The bores are then 4-Step Torque plated honed using our proprietary methods for ultimate ring seal
  • We then machine your block for the proper clearances
  • The block is thoroughly washed for final assembly
  • The crank is fully inspected and micro-polished
  • The rods and pistons are pin fit to our spec
  • The rotating assembly is precision balanced
  • The piston rings are file fit custom to your application
  • The cleaned block oilers are then installed
  • We install your performance coated shaft brgs
  • Install the new freeze plugs, galley plug and head to block dowels
  • Clean, mic, polish and custom clearance both balance shafts to our specs
  • All dimensions and clearances are then checked and recorded
  • The rotating assembly is then installed into the machined block

JAM Stage 1 package +650whp

Our Stage 1 shortblock package comes to you fully assembled with the following components

  • Manley Race series or Eagle forged steel crankshaft, 100mm
  • Wiseco forged pistons, 85.5mm bore, 9.1:1 or 8.5:1 cr, your choice
  • File fit ring package
  • Manley H-Beam rods with ARP 2000 bolts
  • Precision balanced as an assembly
  • ARP Main stud kit
  • Performance coated ACL rod and main engine brgs
  • Performance coated Thrust Washer set
  • Performance coated Balance Shaft brg set

Options include:

  • ARP 11mm Head Stud Kit
  • JAM Spec-Oil Pump/Front Cover Kit
  • OEM MLS Head Gkt
  • Cometic MLS Head Gkt
  • HKS MLS Head Gkt
  • Power Enterprise MLS Head Gkt
  • Fluidampr, SFI Performance Rated
  • O-Rings

*Please note:***GOOD CORES ARE REQUIRED***Additional core charge of $1875 (price includes usable block, crank, balance shafts, complete squirter assemblies) will apply if you do not supply us with a core for your build. If your crankshaft is not usable, an additional charge of $299 will be applied. We must receive your core before your order ships otherwise you will be charged the core fees on the shipping date. We will refund these fees upon receipt of a usable core within 30 days.


Additional information

Weight 185 lbs





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