541ci Pontiac Bullet Short Block

541ci Pontiac Bullet Short Block

Brand New MR1 Race Block Fully CNC Race Prepped on Our CNC Machining Center, Bored to 4.375, Internally Balanced 4.500 4340 Stroker Rotator with H or I Beam Rods, Forged JE or Wiseco Pistons. In House Machine Work to Control Best Machining, with All New Racing Components. See Upgrades for all Options Available



  • MR1 Brand New Fully CNC Race Prepped Racing Block
  • Eagle or Scat 4.500″ 4340 Internally Balanced Crank
  • 6.800 H or I Beam 4340 Steel Rods with 7/16 ARP L19 Bolts
  • King or Clevite Main and Rod Bearings Installed
  • JE Wiseco 14:1 Forged Pistons .180″ Wall Pins (8-13:1 ava)
  • Plasma Moly High Performance File to Fit Ring Package
  • Brass Freeze Plugs and New Cam Bearings Installed
  • Crank Shaft Internally Balanced to .3 ozin then Polished
  • Connecting Rods Have the Rod Bolts Stretched then Re-Checked
  • All Bearing Clearances are Checked and Recorded
  • New Single Cut One Piece BOP Rear Main Seal Installed
  • Ring Gaps are File to Fit and can be set up for any Needs

Available Upgrades

Crower Pro Series Made in the USA 4340 Crank Shaft
Steel Billet Custom Crank Shaft
+ $3500.00
MR1 Block with 55mm Cam Bearings Installed
+ $ 499.00
Eagle, K1 or Scat 4.250″ Internally Balanced 4340 Steel Crankshaft; H Beam Steel Rods with 7/16 ARP 8740 Bolts
+ Included
Complete Hydraulic or Solid Roller Cam Kit Installed, Degree to Intake Valve Opening Specifications from Manufacture, Lifters Billet and Timing Set
+ $1299.00
PowerBond SFI Damper Specific Honed to Fit the Crank Snout
+ $ 249.00
ATI SFI Super Damper Specific Honed to Fit the Crank Snout
+ $ 499.00
New Timing Cover Kit, Moroso 6-7 Qt Oil Pan, Melling Oil Pump and Proper Pick Up with New Shaft all Buttoned Up Nice Neat with New Gaskets
+ $ 879.00
Moroso Complete Vacuum Pump System; Pump, Brackets, Pully Kit, Billet Catch Can, Mandrel, Lines, Fittings and Relief Valve
+ $1199.00
ARP Head Stud Kit Supplied for Your Particular Heads
+ $199.00
MLS Head Gaskets Per Set Right and Left, Fel Pro or Cometic
+ $ 189.00

One of the Best Pontiac Short Blocks You Can Purchase

Free freight does not apply to this item. We will ship to a UPS freight terminal for your address in the normal 48 states up to $200. Handling fees, insurance, residential, lift gate service, out of area charges, will apply for where you have this shipped to at your request. Total cost of these charges over the $200, if any, will be known to you before we ship.

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