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10134371 - Aluminum Bowtie Chevy 90 Degree V6 Block - 4.125" Bore, 9.025" Deck, 2.45" Mains, 4 Bolt Main, Siamesed Bores

10134371
Availability: Item has been discontinued and is no longer available.

Description

This new and best-ever V6/90 aluminum block is improved to withstand the evre increasing power levels that todays racing is imposing.

This new design will accommidate 4.125" cylinder bores and 4.00" stroke camshafts. This offers the flexibility to build engines racing from 3.0-liters to more that 5.2-liters.

The block is designed for standard 2.45" diameter main bearing inserts.The new block is cast from prime ingot A-356 aluminum and heat treated to T- 6 specifications, providing an ultimate strength of 37,500 psi.

The deck surface is .620" thick and the front and rear bulkheads are reinforced.The head bolt holes are blind-tapped to eliminate coolant leaks.

The flared head bolt bosses can be drilled to full depth for full HO turbocharged applications.New four-bolt main bearing caps were designed for the block. They are machined from 4340 chrome-moly steel and there mating surfaces are precision ground. The oil system has been upgraded to provide trouble-free lubrications at high rpm. It features V8-style oiling with three oil galleries above the cam tunnel.

There are no provisions for a machined fuel pump. Eliminating the fuel pump boss significantly improves coolant flow. These blocks weigh 74 lbs. This is a two-piece style rear main seal.

  • Siamesed Cylinder Walls
  • 9.025" Deck Height
  • Bore- 4.125"
  • 4 Bolt Mains
  • Splayed 8620 Steel Caps
  • 2.45" Mains
  • Dry Sump, No Pump Provision
  • 2 Piece Crank Seal
  • 4.00" Max Stroke

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