Page 166 - 2018 Racecar Engineering Engine Parts and Accessories Catalog

CYLINDER HEADS

Chevrolet Big Block 396-454 (Cont.)

GM Performance
Bowtie Rectangular Port Aluminum Head
This head is NHRA legal. and is a replacement for 1969 L88 cylinder heads used on 1969
GMP12363408
Camaro and 1968-1971 Corvette big block engines.
Intake Comb Valve Intake Exhaust
Part No. Description Runner Chamber Port Type Angle Valve Valve
GMP19331427 Bare, Bowtie Rectangular Port 315cc 118cc Rect Stock 2.190" 1.880"

GM Performance
High Output Crate Engine Iron Head
GM Performance High Output Crate Engine cast iron cylinder head are designed for use with
the 454/502 Gen V, VI big block crate engines. Features high flowing 325cc rectangular intake
ports, 118cc open combustion chambers, hardened seats to fit 2.180" intake and 1.880" exhaust valves. Sold individually.
Intake Comb Plug Port Valve Intake Exhaust
Part No. Description Runner Chamber Angle Type Angle Valve Valve
GMP12562925 Bare 325cc 118cc Angled Rect. 15° 2.180" 1.880"
ENQCH454B
Engine Quest
BB Chevrolet Cast Iron Rectangular Port
Head
The EQ cast iron big block Chevy rectangular port cylinder head can support over 850 horse-
power right-out-of-the-box. Features include; revised water jackets for improved cooling , thicker deck surface, 3-angle
valve finished intake seats, radiused hardened exhaust seats and manganese-bronze valve guides. Sold individually.
Intake Comb Intake Exhaust
Part No. Description Runner Chamber Port Type Valve Valve
ENQCH454A BB Chevrolet, Iron 320cc - Bare 320cc 119cc Rect 2.250" 1.880"
ENQCH454B BB Chevrolet, Iron 360cc - Bare 360cc 119cc Rect 2.300" 1.880"

FLOTEK BB Chevrolet Aluminum Heads
The FLOTEK aluminum big block Chevy rectangular port cylinder heads features include;
121cc combustion chambers, 128cc exhaust runners, thicker deck surface, 5-angle valve
finished intake seats, hardened exhaust seat, phosphor-bronze valve guides, swirl polished
stainless valves, hi-performance springs, PC seals, hardened locks, steel retainers, 7/16"
screw-in studs and guide plates. Intake runner at .625" lift flows, 326.6 CFM, exhaust at FTC4075056
.600" lift flows 223.0 CFM. Sold individually.
Intake Comb Port Intake Exhaust
Part No. Description Runner Chamber Type Valve Valve
BB Chevrolet 320, Assembled, 1.46" Spring -
FTC3055056 320cc 121cc Rect. 2.250" 1.880"
178 Lbs Seat Pressure, .600" Lift
BB Chevrolet 320 - Assembled, 1.46" Spring,
FTC3055057 320cc 121cc Rect. 2.250" 1.880"
205 Lbs Seat Pressure, .700" Lift
BB Chevrolet 320 - Assembled, 1.46" Spring,
FTC3055058 320cc 121cc Rect. 2.250" 1.880"
230 Lbs Seat Pressure, .800" Lift
BB Chevrolet 360 - Assembled, 1.46" Spring,
FTC4075056 360cc 121cc Rect. 2.250" 1.880"
178 Lbs Seat Pressure, .600" Lift
BB Chevrolet 360 - Assembled, 1.46" Spring,
FTC4075057 360cc 121cc Rect. 2.250" 1.880"
205 Lbs Seat Pressure,.700" Lift
BB Chevrolet 360 - Assembled, 1.46" Spring,
FTC4075058 360cc 121cc Rect. 2.250" 1.880"
230 Lbs Seat Pressure, .800" Lift

2018 ENGINE BUILDER CATALOG 165