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BES Racing Engines - BES / Dart 11° Big Chief Heads

BES / Dart 11° Big Chief Heads: Price

This is a head designed for big inch, big power engines. Built for nostalgia pro street or quick series racing. Works well with nitrous, but we also offer and naturally aspirated combination.

  • Chamber sizes: 70 - 90 cc's
  • These heads have the potential for 1400 horsepower
  • Valve sizes are 2.500 intake valve and 1.800 exhaust valve
  • Same heads that are on Jim Jarrett's NMCA NPS 638. Jim has just set the record at 7.25 @ 191 mph. That is in a 3,300 lb car with a .30 NOS jet


Starting @ $8,650.00

Call 812-576-2371 for details.
BES / Dart 11° Big Chief Heads - Flow Numbers
  Intake Exhaust
.200  158  130
.300  249  185
.400  344  236
.500  424  294
.600  489  338
.700  527  366
.800  547  378
.900  545  384
1.000  556  389
Intake Valve Dia.  2.500
Exhaust Valve Dia.  1.800
Intake Port Volume  
Combustion Chamber CC  90cc From 70-90
BES does not build winning combinations based on flow numbers, but, everyone asks for them as a baseline, and that is why we are posting them. Flow numbers will vary from bench to bench.

This is only a small example of what BES RACING ENGINES has to offer. If you do not see what you are looking for, please call us at 812-576-2371.

 

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