DART DA3126334 Big M Chev Big Block Engine Block 4.250" Bore 9.8" Deck Dar3126334

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Dart

DA3126334
$4,679.10 AUD
$4,679.10 AUD
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DART DA3126334 Big M Chev Big Block Engine Block 4.250" Bore 9.8" Deck Dar3126334

Item Description

DART BIG M CHEVY BIG BLOCK ENGINE BLOCK 4.250" BORE 9.8" DECK DAR3126334These Dart Big M Chevy big blocks are a no-compromise design that solves the problems that have plagued big blocks for years. They feature an improved oiling system, extra-thick cylinder walls, 4-bolt mains, and scalloped water jackets for improved coolant flow. Features:
- Standard 9.800" deck height.
- Standard 4.250" bore size with siamesed extra thick cylinder walls to resist cracking and improve ring seal (minimum .300" thick with 4.625" bore).
- Uses +.300" tall Gen VI style lifters. Modification for Gen IV style available.
- Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures.
- 4 bolt billet steel main caps have splayed.
- True priority main oil system lubricates the main bearings before the lifters. Our stepped main oil gallery (9/16" to 1/2" to 7/16") increases the flow of oil to the crank at high rpm, and our front oil crossover eliminates internal oil leaks around the distributor shaft.
- Oil filter pad is drilled and tapped for an external oil pump.
- Available in traditional Gen IV style, or in Gen V or Gen VI style with one piece rear seal.
- 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 any chassis.
- Dual oil pan bolt patterns fit standard and notched oil pans.
- Coated cam bearings, freeze plugs and dowels are included.
Specs:Application: Chev Big Block Mark IVMain Journal Type: OEM
Engine Block Style: Stock/OEM standard deck
Deck Height (in): 9.800 in.
Cylinder Bore as Shipped: 4.240 in.
Cylinder Bore Diameter: 4.250 in.
Engine Block Material: Cast iron
Engine Block Weight (lbs): 280 lbs.
Main Bolt Style: 4-bolt
Main Caps Included: Yes
Main Cap Material: Steel
Main Cap Fasteners Included: Yes
Main Bearings Included: No
Rear Main Seal Style: 2-piece
Finished Cylinder Bores: No
Raised Cam Location: No
Cam Bearings Included: Yes
Freeze Plugs Included: Yes
Quantity: Sold individually.
Notes: Block bores are .10 undersized to allow for piston set up.
Please call 02 60255666 or Email sales@enginemaster.com.au with your suburb and postcode for a shipping quote.

Items are shipped within one to two business days after full payment has been recieved.


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  • Manufacturer: Dart
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