According to Tom, racers and rodders who want to modify a stock block to make serious power usually spend in the neighborhood of $2500 to well past $3000 just to make their blocks about half as strong as the all new, $2000 Payn/Dart block. You don?t have to hit the machine shop and have the block Frankensteined, just call Tom. The block can be ordered through Payn Technologies @ 248-362-0283 or through any of Dart?s distributors
Here?s a list of attributes for the new piece straight from the horses? mouth at Dart.
(
http://www.dartheads.com )
Dart B18 block has stock deck height, standard 81.5mm bore, optional 84.5mm bore.
Dart B20+ block has extra-tall 8.900" (226mm) deck height, 84.5mm bore for
increased displacement.
Manufactured from aerospace quality C355-T6 virgin aluminum alloy for maximum strength and durability.
Replaceable ductile iron dry sleeves are fully supported to reduce bore distortion and enhance ring seal.
Closed deck design increases rigidity and improves head gasket sealing.
Steel main caps with high-strength bolts increase bottom end strength and minimize bearing bore distortion.
Extra large water jackets increase coolant circulation around cylinders.
Standard piston oil sprayers reduce piston temperatures to extend life and prevent detonation.
Dart blocks use stock components, including oil pan, oil pump, water pump,
alternator, and timing belt tensioner