Canfield's standard 20-degree SBF head, in testing, has proven it's 400 plus horsepower capable. In dyno testing with a camshaft of less than .600 lift, unported Victor junior, a 306 c.i. 9.9 compresseion ratio engine, made 414 h.p

Intake runners are designed to keep intake volumes at a minimum so as to keep air speeds up.

Head assemblies from Canfield feature premium quality components. Flat tappet assemblies use American made 1.44 or 1.55 diameter dual springs. All locks and retainers are 10-degree heat treated chrome-moly steel. Race quality stainless steel valves or optional titanium is used exclusively.

Race proven valve jobs are done on the latest computerized seat and guide machines.

Combustion chambers are standard at 58 c.c. in as cast or our optional CNC milled 54, 58 or 65 c.c. chambered heads.

Intake Valve Size  2.02 Intake Port Vol. 192
Exhaust Valve Size 1.60
Chamber Volume  58

VALVE LIFT			.100	.200	.300	.400	.500	.600	.700
Intake Port			70	150	203.5	242	261.5	272	274
Exhaust Port*			54	102	132	171	190	201	207
These are typical flow numbers at 28 inches of water measured on a SF 600 bench by an independent shop. *Exhaust flow numbers are without a pipe.

18 Degree Small Block Ford

Standard intake location and exhaust ports. Designed for the 5.0 litre.

170 cc Intake runners
2.02 Intake and 1.60 Exhaust Valves
Camshafts up to .550 lift shouldn't require piston notching
Stock location exhaust ports
61 cc CNC profiled combustion chamber standard
Utilizes stock piston valve notches
Cast from the finest A356 Virgin Billet
Heat treated to a T-6 condition
Machined on the latest precision, computer controlled machining centers
Manganese bronze valve guides and cast alloy valve seats
Available with or without EGR provisions
Can use stock valve covers and roller rockers with minor modifications
Available in assemblies only
Guide plates included

 $1150 add $70 for CNC machined combustion chambers