They are made from Virgin 355-T6 aerospace aluminum alloy for maximum strength and have reinforcing ribs to strengthen the lifter valley and bellhousing flange

Ductile iron dry sleeves with extra-thick walls promote excellent ring seal

These are the strongest aluminum blocks avalable and have the most custom features of any aluminum block on the market. Features include:

• 9.800 standard deck, 10.200" tall deck & 10.400" xtra tall deck
• Cam Raised .400" for long stroke clearance
• .842" std lifter bores
• Standard Oil Pan Rails with dual bolt patterns for stroker cranks
• Steel Main Caps with Splayed Outer Bolts
• Max Bore 4.600"
• Max Cu. In. is 650" with 5.000" stroke and steel rods
• Bores of 4.250", 4.500" & 4.600" available
• Standard BBC Cam Bearings
• Stock Front Cover & Cam Drive
• Std Mark IV Water Pump Location
• Std or modified lifter locations

  For Std. Cam Location Aluminum Blocks click here.

Part Number	Deck Height	Cyl Bore Dia.	Cam Brg	Lifter Bore	Price	In stock	Purchase
31264345	9.800	4.250	Stock	stk .842	$5,095.00	Yes
31264445	9.800	4.500	Stock	stk .842	$5,095.00	Yes
31264645	9.800	4.600	Stock	stk .842	$5,095.00	Yes
31264355	10.200	4.250	Stock	stk .842	$5,095.00	Yes
31264455	10.200	4.500	Stock	stk .842	$5,095.00	Yes
31264655	10.200	4.600	Stock	stk .842	$5,095.00	Yes
31264395	10.400	4.250	Stock	stk .842	$5,095.00	Yes
31264495	10.400	4.500	Stock	stk .842	$5,095.00	Yes
31264695	10.400	4.600	Stock	stk .842	$5,095.00	Yes