Page 307 - 2022-23 Auto Performance Drag Racing

Big Block Chevy
Performer 454-O Cylinder Head
DRAG RACING
Big Block Chevy (Cont.)
Victor Jr. 24° Cylinder Head
Based on the Victor 24° cylinder head, but with smaller, 300cc intake run- ners. Rectangular-port aluminum cylinder head is ideal for drag racing big block Chevy engines with 4.310"
The addition of exhaust cross-
over passages for cold weather
operation makes the Performer
cylinder head 50-state legal. Match with a Performer mani- fold, camshaft and lifter kit, carburetor, and exhaust headers for an engine capable of producing up to 470 ft./lbs. of torque at 3500 RPM. Sold individually, fully assembled.
Performer RPM 454-O Cylinder Head
EDE60435
EDE77485
Part No.
Description
Int. Valve
Exh. Valve
Chamber Volume
Intake Volume
Valve Spring
Max. Lift
EDE60435
Assem., Hyd. Roller Cam
2.19"
1.88"
100cc
290cc
1.55"
.700
EDE60439
Assem., Flat Tappet
2.19"
1.88"
100cc
290cc
1.55"
.700"
EDE8551
Head Bolt Kit, Required
—
—
—
—
—
—
Part No.
Description
Int. Valve
Exh. Valve
Chamber Volume
Intake Volume
Valve Spring
Max. Lift
EDE77485
Assem., Hyd. Roller Cam
2.25"
1.90"
106cc
300cc
1.55"
.700"
EDE8551
Head Bolt Kit, Mark IV Only
—
—
—
—
—
—
Identical to street legal 454-O
cylinder Head, but with deleted
exhaust crossover passage for
more power. High-performance
oval port head can help produce
over 540 horsepower with 9.5:1 compression when used with the proper matching components. Intake valves are 2.19", exhaust valves are 1.88" and both are lighter, with smaller diameter (11/32") stems than original valves. Semi-open combus- tion chamber provides exceptional combustion efficiency with streetable compression ratios. Sold individually, bare or com- pletely assembled.
Performer RPM 454-R Cylinder Head
or larger bores and up to 510 cu. in.
Head has .100" raised intake ports, raised ex-
haust ports, blended bowls, competition valve job, stainless 2.250" intake and 1.900" exhaust valves. Sold individually, completely assembled.
Small Block Chrysler
Performer RPM Cylinder Head
EDE60459
A bolt-on performance
head for the Chrysler “A”
318-360 engines. Com-
patible with stock-type
components, aluminum head has stainless steel
2.02" intake and 1.60" exhaust valves, and heavy-duty valve springs good for cams with up to .575" lift. The EDE60179 head has machined combustion chambers for a direct bolt-on to 1968-73, 340 engines. Head is sold individually, bare or completely assembled.
EDE60175
Part No.
Description
Int. Valve
Exh. Valve
Chamber Volume
Intake Volume
Valve Spring
Max. Lift
EDE60455
Assem., Hyd. Roller Cam
2.19"
1.88"
110cc
290cc
1.55"
.700"
EDE60459
Assem., Hydraulic Cam
2.19"
1.88"
110cc
290cc
1.55"
.700"
EDE60499
Assem., Hydraulic Cam
2.19"
1.88"
100cc
290cc
1.55"
.700"
EDE8551
Head Bolt Kit, Required
—
—
—
—
—
—
Part No.
Description
Int. Valve
Exh. Valve
Chamber Volume
Intake Volume
Valve Spring
Max. Lift
EDE60175
Assem., Hyd. Roller Cam, 340
2.02"
1.60"
65cc
171cc
1.46"
.575"
EDE60179
Assem., Hydraulic Cam, 340
2.02"
1.60"
65cc
171cc
1.46"
.575"
EDE60769
Bare
2.02"
1.60"
63cc
171cc
N/A
N/A
EDE60775
Assem., Hyd. Roller Cam
2.02"
1.60"
63cc
171cc
1.46"
.575"
EDE60779
Assem., Hydraulic Cam
2.02"
1.60"
63cc
171cc
1.46"
.575"
EDE8555
Head Bolt Kit, Required
—
—
—
—
—
—
Rectangular-port big block
Chevy cylinder head offers
increased flow and velocity
compared to standard
oval-port cylinder head,
particularly between 3500-7000 RPM. Open
118cc combustion chambers and 315cc/300cc intake runners provide maximum performance potential. Stainless 2.19" intake and 1.88" exhaust valves have 11/32" stems (smaller than original) to reduce valve train weight. Deck surface was specifically designed for compatibility with all big block Chevy engine blocks. Sold individually, bare or completely assembled.
Performer RPM Magnum Cylinder Head
EDE60549
Cylinder head has an
improved design and is
engineered for 1992-up
5.2L (318) and 1993-up
5.9L (360) small block Chrysler Magnum engines.
Aluminum head uses stock intake and exhaust port locations for compatibility with popular manifolds. Sold individually, bare or completely assembled.
EDE61775
Part No.
Description
Int. Valve
Exh. Valve
Chamber Volume
Intake Volume
Valve Spring
Max. Lift
EDE61775
Assem., Hyd. Roller Cam
2.02"
1.60"
58cc
176cc
1.46"
.580"
EDE61779
Assem., Hydraulic Cam
2.02"
1.60"
58cc
176cc
1.46"
.580"
Part No.
Description
Int. Valve
Exh. Valve
Chamber Volume
Intake Volume
Valve Spring
Max. Lift
EDE60549
Bare
2.19"
1.88"
118cc
315cc
N/A
N/A
EDE60559
Assem., Hydraulic Cam
2.19"
1.88"
118cc
315cc
1.55"
.700"
EDE8551
Head Bolt Kit, Required
—
—
—
—
—
—
305
2022-23