Page 277 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

Small Block Chevy (Cont.) Big Block Chevy (Cont.)
E-CNC Cylinder Head EDE61209 Performer RPM 454-O Cylinder Head

Fully CNC-ported for maximum horsepower, cylinder heads are
designed for high performance street or mild racing applications. Identical to street legal 454-O Cylinder Head, but with deleted
Heads maintain the OEM exhaust port location, include light- exhaust crossover passage for more power. High performance,
weight valve springs and feature heavy duty hardware. oval port head can help produce over 540 horsepower with 9.5:1
compression when used with the proper matching components.
Int. Exh. Chamber Intake Valve Max.
Part No. Description Valve Valve Volume Volume Spring Lift Intake valves are 2.19", exhaust valves are 1.88" and both are
EDE61205 Assem., Hyd. Roller 2.10” 1.60” 68cc 225cc 1.34” .680” lighter, with smaller diameter (11/32") stems than original valves.
EDE61209 Assem., Mech. Roller 2.10” 1.60” 68cc 225cc 1.58” .700” Semi-open combustion chamber provides exceptional combustion
effi ciency with streetable compression ratios. Sold individually,
Victor Jr. 23° Cylinder Head
EDE77619 bare or completely assembled.
Int. Exh. Chamber Intake Valve Max.
Part No. Description Valve Valve Volume Volume Spring Lift
EDE60449 Bare 2.19" 1.88" 110cc 290cc N/A N/A
Assem.,
EDE60455 2.19" 1.88" 110cc 290cc 1.55" .700"
Hyd. Roller Cam
Assem., Hydraulic
EDE60459 2.19" 1.88" 110cc 290cc 1.55" .700"
Cam
Assem., Hydraulic
EDE60499 2.19" 1.88" 100cc 290cc 1.55" .700"
Cam
Victor Jr. 23° small block Chevy aluminum cylinder head com- EDE8551 Head Bolt Kit, — — — — — —
bines affordability with maximum performance for radical street Required
or competition applications. Large 215cc intake runners have the
potential to provide up to 580 horsepower. Head accepts standard Performer RPM 454-R Cylinder Head
valve train components. Sold individually, bare or completely
assembled.
Int. Exh. Chamber Intake Valve Max.
Part No. Description Valve Valve Volume Volume Spring Lift
Bare w/Valves Only,
EDE77579 2.08" 1.60" 64cc 215cc 1.55" .670"
Mech. Flat/Hyd. Roller
Assem., Mech.
EDE77589 2.08" 1.60" 64cc 215cc 1.55" .650"
Flat/Hyd. Roller Cam
Assem., Mech.
EDE77619 2.08" 1.60" 64cc 215cc 1.55" .650"
Flat/Hyd. Roller Cam
Assem.,
EDE77629 2.08" 1.60" 70cc 215cc 1.55" .670" Rectangular port big block Chevy cylinder head offers increased
Mech. Roller Cam
EDE8550 Head Bolt Kit — — — — — — fl ow and velocity compared to standard oval port cylinder head,
particularly between 3500-7000 RPM. Open 118cc combustion
Big Block Chevy chambers and 315cc/300cc intake runners provide maximum
Performer 454-O Cylinder Head 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 specifi cally designed for compat-
ibility with all big block Chevy engine blocks. Sold individually,
bare or completely assembled.
Int. Exh. Chamber Intake Valve Max.
Part No. Description Valve Valve Volume Volume Spring Lift
EDE60549 Bare 2.19" 1.88" 118cc 315cc N/A N/A
Assem.,
EDE60555 Hyd. Roller Cam 2.19" 1.88" 118cc 315cc 1.55" .700"
The addition of exhaust crossover passages for cold weather Assem.,
operation makes the Performer Cylinder Head 50-state legal. EDE60559 Hydraulic Cam 2.19" 1.88" 118cc 315cc 1.55" .700"
Match with a Performer manifold, camshaft and lifter kit, carbure- EDE8551 Head Bolt Kit, — — — — — —
tor, and exhaust headers for an engine capable of producing Required
up to 470 ft./lbs. of torque at 3500 RPM. Sold individually, fully
assembled.
Int. Exh. Chamber Intake Valve Max.
Part No. Description Valve Valve Volume Volume Spring Lift
EDE60439 Assem., Flat Tappet 2.19” 1.88” 100cc 290cc 1.55” .700”
EDE60479 Assem., Hydraulic Cam 2.19" 1.88" 110cc 290cc 1.55" .700"
EDE8551 Head Bolt Kit, Required — — — — — —

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