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Ford Performance Parts Boss 302 Engine Blocks

The perfect foundation for your Boss engine--Ford Performance Parts Boss 302 engine blocks! They're built stronger than the originals to make your high performance build a success. Designed as replacements for the legendary Boss 302 and Boss 351 blocks, they use the latest technology and manufacturing techniques. Cast from diesel-grade iron with siamesed bores, thick cylinder walls and decks, Boss block strength is far superior to any Ford production block. Boss 302 blocks are available in standard and Big Bore versions that support engine sizes up to 363 c.i.d. Proven around the world, both on the track and on the street; all Ford Performance Boss 302 blocks are cast and machined to the highest industry standards in the USA. Features include: * Big Bore version features 4.125 in. bore capacity, finished at 4.115 in. rough bore * Standard bore version is finished at 3.990 to 3.995 in. rough bore with 4.125 in. bore capacity * 8.2 in. deck height, finished at 8.200 in. plus .010 to .015 in. * Optimized cylinder wall length for stroker applications up to 3.5 in. with no grinding or clearancing (depends on crank/rod manufacturer) * Splayed 4-bolt mains on 2, 3, 4, main caps * 2-bolt main on first and fifth 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 1979-95 Mustang oil pan with custom oil pickup tube, part number: M-6622-BOSS302 * NASCAR inspired front oil feed on both lifter galleys * Revised cooling system passageways * Increased bulkhead material * Threaded core and galley plugs (straight thread port plugs with O-ring) * Require special length 1/2 in. head bolts M-6065-BOSS or head studs M-6014-BOSS recommended with M-6049-X306/307/Z304DA heads * Designed for M-6049-X306//X307/C3/D3/Z304DA cylinder heads * Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads * Uses common O.D. cam bearings M-6261-J351/R351 * Unique cam plug M-6026-S351 included * M-6051-S331 or M-6051-CP331 head gasket recommended * Uses stock-type timing cover (M-6059-D351 recommended; includes fuel pump provision) * Retains clutch cross shaft pivot hole * Original-style oil filter location * Original motor mount boss locations * Original bell housing pattern * Approximate weights: Big Bore 163 lbs.; standard bore 175 lbs.

5.0 out of 5 stars ( 3 )

$2,265.99

Summit Racing™ SPC Engine Blocks

Summit Racing™ SPC Engine Blocks are aftermarket V8 Engine Blocks made for "Street, Performance, or Competition." These new clean sheet designed aftermarket blocks are cast in a modern state-of-the-art German foundry on brand new molds and machined in USA on modern high-speed machining centers that can hold the tightest of tolerances. Why start your engine build with a dirty, old, worn-out production block that needs hundreds or thousands of dollars of machine work--when you can start with a new heavy-duty casting full of high-performance features. We ship these blocks mostly finished but leave the cylinder bore .005" undersize, your machine shop will have to hone them for proper size. You can rest assured that you have a great foundation for your engine build. Check out the features below! Additional details: • Available Versions Include: GM Small Block, GM LS, GM Big Block (coming Soon,) Ford Windsor 5.0 and 351W • Cast in Germany at a Tier 1 OEM foundry • Made with class 35 Iron Alloy, Higher tensile strength and harder than competitors' class 30 • Machine-finished in USA on precision hi-speed machining centers- All dimensions are very accurate! • Priority main oiling systems & Siamese Cylinder bores • Blind head bolt holes • 4-bolt main caps, 180,00 PSI main bolts included

5.0 out of 5 stars ( 11 )

$2,549.99

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$2,999.99

Dart Big M Sportsman Big Block Chevy Cast Iron Bare Blocks

The foundation for a better big block build begins with Dart Big M Sportsman Big Block Chevy cast iron bare blocks. Dart engineered the Big M to be the strongest, most reliable, and easiest to build big blocks on the market. The Dart Big M Sportsman blocks feature: * Standard 9.800 in. and tall 10.200 in. deck heights available for Stroker engines * Standard 4.250 in., 4.500 in., or 4.600 in. bore sizes with Siamesed extra thick cylinder walls to resist cracking and improve ring seal (minimum .300 in. thick with 4.625 in. bore) * Uses +.300 in. tall Gen VI style lifters. Modifications for Gen IV style are also available * Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures * 4-bolt ductile iron main caps have splayed outer bolts for extra strength * True priority main oil system lubricates the main bearings before the lifters * Oil filter pad is drilled and tapped for an external oil pump * Lifter valley head stud bosses prevent blown head gaskets * Rear main cap uses standard oil pump and two-piece seal, no adapter required * Mechanical fuel pump boss, clutch linkage mounts, and side and front motor mounts simplify installation in chassis * Dual oil pan bolt patterns fit standard and notched oil pans * Coated cam bearings, freeze plugs and dowels not included * Small bore 396 version available

Not Yet Reviewed

$3,599.99

World Products Man O'War Bare Blocks

When it comes to Ford 302/351 replacements, these Man O'War bare blocks are without a doubt the most advanced cast iron blocks on the market today. They were designed in collaboration with leading Ford race teams, yet are also engineered for 100 percent reliability on the street. Like the original Man O' War, they deliver performance!

5.0 out of 5 stars ( 1 )

$4,494.05