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Kauffman Performance MR-1 Block

MR-1 Pontiac Block on the CNC machine

MR-1 Cast Iron Block


standard 3" mains

Freight collect! Cast iron blocks have to be shipped via truck freight. Online orders exclude any freight charge that the cart server may add.

MR-1 Pontiac Block

MR-1A Aluminum Block


standard 3" mains

MR-1A Pontiac Block

Here are just some of the MR-1 Pontiac Block improvements over a stock block:

  • made from high quality cast iron
  • has a thick deck
  • comes standard with splayed billet steel 4 bolt main caps 
  • there is no water jacket penetration at the clutch ball 
  • block is capable of large bore and stroke sizes
  • dual bellhousing bolt pattern
  • lifter galley is strengthened - no additional lifter bore brace is required

The aftermarket Pontiac MR 1 block was designed to accept ALL stock Pontiac parts! 

Bill Mellott's Funny Car

- Pontiac roller lifters (Crower as well as other brands)
- stand oil pump drive rod
- standard press in freeze plugs
- All standard Pontiac cooling passages are present
- No Timing cover issues

50 MM cam bearings - $250.00

50 MM cam bearing option - $300.00 upgrade

55 MM cam bearing option! - $350.00 upgrade

55 MM cam bearings! - $250.00

Bronze lifter bushing - upgrade - $560.00 installed

.903 Lifter bore upgrade - $240.00

.937 Lifter bore upgrade - $240.00

E-mail KRE

Call, E-mail or fax your orders!!!
740 599-5000
740 599-5550 Fax
Open Mon. thur Fri. 9 to 5 unless we're racing!!

Daily UPS Shipping

Kauffman Racing Equipment
22280 Temple RD
Glenmont, OH 44628

Copyright © 1997-2024 Jeff Kauffman
Last Revision 2/9/24