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Ford Performance 5.0L Big Bore Boss Block by Ford Performance

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Details   |   Reviews
Ford Performance 5.0L Big Bore Boss Block

Relive the legend and gain some huge power by putting this 5.0L Big Bore Boss Block in your 1979-1995 Ford Mustang!

Item #M6010B302BB
MPN# M-6010-B302BB

Everyday Low Price: $2,249.99

Out of Stock
This item is not eligible for discounts or coupon codes.
 This item is not returnable. Details
 Truck Freight Item - Shipping calculated at checkout. Details

This product cannot be sold or shipped to the state of California. More Details

Made in the USA


  • Stronger Design For High HP Applications


  • 4.125" Maximum Bore
  • 4.115" Finished Rough Bore
  • 8.2" Deck Height
  • Splayed 4 Bolt Mains On #2,#,3& #4
  • Max Stroke 3.400"

 What's in the Box

  • (1) Big Bore Engine Block

5.0L Big Bore Boss Block
The legend is reborn with this all new 302 block! Stronger than the original!

4.125" bore capacity, finished to a rough bore of 4.115"
8.2" deck height, finished at 8.200" plus .010" to .015"
Maximum recommended stroke 3.400"
Splayed 4-bolt main on 2, 3, 4, main caps
2-bolt main on 1 and 5 main caps
Main bearing bores finished to low limit
Finished lifter bores
Machined to accept factory roller lifter guides and lifter guide retainer
Fits factory Mustang oil pan with oil pickup tube M-6622-BOSS302. Stroker applications may require custom pickup tube
Revised oiling and cooling system passageways
Siamese bore
Increased bulkhead material
Threaded core and galley plugs (straight thread port plugs with O-ring)
½" head bolts (special length required)
Uses common OD cam bearings M-6261-J351/R351
Unique cam plug M-6026-S351 included
M-6051-R351 head gasket recommended
Weighs approximately 175 lbs.
Great price and value
The foundation for 8.2" deck projects requiring a 4.125" finished bore

ARP-1543603 head bolts are required for this block

- Fits 1979-1995 Ford Mustangs

This product is intended for off-road use only, and is not legal for use in emission restrictive states. Off-Road Disclaimer

Ford Performance Racing Parts "Packs" and Component Parts Limited Warranty - Click Here
Ford Performance Racing Parts - NO WARRANTY - Click Here
Ford Performance Racing Parts Crate Engine Limited Warranty - Click Here

  • Ford Mustang - 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995

California Residents:
Prop 65 Warning SignWARNING: Cancer and Reproductive Harm- www.P65Warnings.ca.gov
Ship Weight: 204 lbs

About This Brand

Ford Performance
Ford Performance - Mustang Ford Racing Parts
Ford Performance Parts is the leader in performance parts and accessories for Mustang and Ford Lightning.

LMR.com is proud to offer Ford Racing Performance Parts for your project. Ford Racing is dedicated to manufacturing the highest quality products offered in the industry. Choose from suspension, exhaust, wheels, and other performance parts at Late Model Restoration. If you want the best for your Mustang or SVT Lightning, look no further than Ford Performance Parts!

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