BES Racing Engines - BES / Dart 11° / 14° Big Chief Heads

BES / Dart 11° / 14° 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

For a max effort or class engines we have better flowing programs. Call for details: (812)-576-2371

We can customize these specifications and components to your application, just give us a call at 812-576-2371

Starting @ $9,100.00

Call 812-576-2371 for details ask for Preston.

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
Combustion Chamber CC	90cc From 70-90
BES / Dart 14° Big Chief Heads - Flow Numbers
	Intake	Exhaust
.200	153	122
.300	258	184
.400	341	243
.500	419	303
.600	474	339
.700	511	354
.800	536	365
.900	552	375
1.000	558	380
Intake Valve Dia.	2.500
Exhaust Valve Dia.	1.800
Combustion Chamber CC	85cc
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.

We have many programs for a huge selection of domestic cylinder heads. If you don't see what you are looking for on the website, give us a call at (812)-576-2371.