HMS Race Demon 4.6L mod forged short blocks are custom hand built for Dependable High horse power and performance! Our short blocks are designed for all high horsepower applications from street / strip to all out competition. Running n/a, boosted or nitrous, we have the right short block for you! Every short block is specifically built per application for each customer.
 Please expect 1-4 weeks for build time! 

1 Year Limited Warranty

               Torque Plate Honed & Blueprinted Block

               HMS/KC Custom Forged Crankshaft

               HMS Custom Forged H-Beam Rods w/ARP Bolts

              Clevite or FM Performance Main and Rod Bearings

281ci Features:

3.54" Stroke Crankshaft

2 Valve Iron Block w/ARP Studs

Std or .020 over Cylinder Bore

N/A or Boost Compression Ratio

Assembled and Internally Balanced


Our Price: $3395.95
 

 





298ci Features:

3.75" Stroke Crankshaft

2 Valve Iron Block w/ARP Studs

Std or .020 over Cylinder Bore

N/A or Boost Compression Ratio

Assembled and Internally Balanced


Our Price: $3595.95
 



 

281ci Features:

3.54" Stroke Crankshaft

3 Valve Alum. Block w/ARP Studs

Std or .020 over Cylinder Bore

N/A or Boost Compression Ratio

Assembled and Internally Balanced


Our Price: $4395.95
 

 





298ci Features:

3.75" Stroke Crankshaft

3 Valve Alum. Block w/ARP Studs

Std or .020 over Cylinder Bore

N/A or Boost Compression Ratio

Assembled and Internally Balanced


Our Price: $4795.95



 

IMPORTANT INFORMATION! PLEASE READ!

All short blocks are balanced prior to assembly

 The 5.0L stroker uses a 3.75" 8 bolt forged crank produced by the same
company that produces Ford's Cobra crank. An 8 bolt flywheel is needed with stock
 and stroked cranks. Both our standard and stroked crankshafts come right from
Ford's USA manufacturer, these are not china imports!

All of our HMS DEMON short block prices shown are Balanced. All 4.6 modular motors are
 internally balanced. The 3.75" stroker* crank is considered a 5.0L (298cid with STD. bore,
300cid with .020 over bore), requires heavy metal...see (pic below) for proper balancing.
 All stock Romero 4.6L GT engines...2V / 3V have a 6 bolt crank flange! Some 99-00 mustang
GT engines were Windsor based...these do have a 8 bolt crank. When running a 8 bolt crank, do
 not forget about a new flywheel! 

Available with either STD or over sized pistons and variety of compression ratios.

If you have any questions regarding the right short block for you or options, please contact us toll free at 866-997-3991.