Dart Big M Bbc Chev Comp Iron Block 9.8 Deck 4.25 Bore 31263344
MPN: 31263344
|
RPI: 185751
Trackable Shipping
Australia Wide
Handling Time
7-10 Business Days Handling Time
(Prior to Dispatch)
(Prior to Dispatch)
Return Policy
No Return (Unless Manufacturer Defect)
Type in your postcode or suburb to get an estimate on postage cost.
Click & Collect (no postage cost)
Unit 1/25 Bearing Road, Seven Hills, NSW, 2147
Ready-to-pickup: 7-10 Business Days*
*You'll receive a notification when your order is ready for pickup. For store details and opening hours, click here
Dart engineered the Big Mblock to be the strongest,most reliable and easiest tobuild big block on themarket. With multiple deckheights and bore sizes up to4.600", the Big MSportsman block gives you theversatility to build a widevariety of enginecombinations. A true prioritymain oiling system oils themain bearings before thelifters for extrareliability.
Features:- Standard9.800" and tall10.200" deck heightsavailable for strokerengines.
- Standard4.250" , 4.500" or4.600" bore sizes withsiamesed extra thick cylinderwalls to resist cracking andimprove ring seal (minimum.300" thick with4.625" bore).
- Uses +.300" tall Gen VIstyle lifters. Modificationfor Gen IV style available.
- Scalloped outerwater jacket walls improvecoolant flow around thecylinder barrels to equalizetemperatures.
- 4 boltbillet steel main caps havesplayed outer bolts for extrastrength.
- Crankshafttunnel has clearance for a4.500" stroke crank withsteel rods without grinding.
- True priority mainoil system lubricates themain bearings before thelifters. Our stepped main oilgallery (9/16" to1/2" to 7/16")increases the flow of oil tothe crank at high rpm, andour front oil crossovereliminates internal oil leaksaround the distributor shaft.
- Oil filter pad isdrilled and tapped for anexternal oil pump.
- Lifter valley head studbosses prevent blown headgaskets.
- Rear maincap uses standard oil pumpand two piece seal - noadapter required!
- Mechanical fuel pump boss,clutch linkage mounts, andside and front motor mountssimplify installation in anychassis.
- Dual oil panbolt patterns fit standardand notched oil pans.
- Coated cam bearings, freezeplugs and dowels areincluded.
Write Your Own Review