Emissions Warning
Products sold on this website may not be legal for use on public roads or highways due to Environmental Protection Agency (EPA) restrictions or California Air Resources Board (CARB) emissions regulations. Federal and State regulations may restrict Product installation to pre-emissions regulation (Model Year 1974 or earlier) or to competition/racing vehicles used exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and3) practice associated with events.
Installation of such products, including driving racing vehicles to and from the track, may be considered illegal “tampering ” or as “defeat device”, and may result in federal and state penalties. It is the purchaser’s responsibility to ensure compliance with all applicable emissions laws, including California’s stricter standards.
Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
- Cylinder Head Style:
- Assembled
- Cylinder Head Material:
- Cast aluminum
- Cylinder Head Finish:
- Natural
- CNC-Machined Combustion Chamber:
- No
- Combustion Chamber Volume (cc):
- 63cc
- Combustion Chamber Style:
- N/A
- CNC-Machined Intake Runner:
- No
- Intake Runner Volume (cc):
- 171cc
- Intake Port Shape:
- Rectangular
- Intake Port Location:
- Standard
- Intake Valve Angle:
- 18 degree
- CNC-Machined Exhaust Runner:
- No
- Exhaust Runner Volume (cc):
- 77cc
- Exhaust Port Shape:
- N/A
- Exhaust Port Location:
- Standard
- Exhaust Valve Angle:
- N/A
- Intake Valves Included:
- Yes
- Intake Valve Diameter (in.):
- 2.020 in.
- Exhaust Valves Included:
- Yes
- Exhaust Valve Diameter (in.):
- 1.600 in.
- Valve Type:
- N/A
- Maximum Valve Lift (in.):
- N/A
- Valve Springs Included:
- Yes
- Valve Spring Type:
- Single w/Damper
- Outside Diameter of Outer Spring (in.):
- 1.460 in.
- Valve Guides Included:
- Yes
- Valve Guide Material:
- Manganese bronze
- Valve Seats Machined:
- Yes
- Valve Seat Material:
- Ductile iron
- Valve Seat Machine Style:
- 3-angle
- Retainers Included:
- Yes
- Retainer Material:
- Steel
- Valve Stem Seals Included:
- Yes
- Valve Stem Seal Style:
- Viton Positive stop
- Locks Included:
- Yes
- Lock Style:
- 7 degree
- Camshaft Style:
- Hydraulic flat tappet
- Spark Plug Style:
- Angled
- Guideplates Included:
- No
- Guideplate Pushrod Size:
- 5/16 in.
- Rocker Arm Studs Included:
- No
- Rocker Arm Nut Thread Size:
- N/A
- Accessory Bolt Holes Drilled:
- Yes
- Valve Cover Mounting Style:
- Perimeter bolt
- Heat Crossover:
- No
- Steam Holes Drilled:
- No
- Oiling Style:
- Through head
- Machined for O-Ring:
- No
- Quantity:
- Sold as a kit.
- Notes:
- Includes intake, heads, cam, lifters, timing chain and gears, gasket and bolt sets. 1970 340 T/A valvetrain is not compatible with these heads.
- Camshaft Included:
- Yes
- Duration at 050 inch Lift:
- 234 int./244 exh.
- Advertised Duration:
- 308 int./318 exh.
- Valve Lift with Factory Rocker Arm Ratio:
- 0.488 int./0.510 exh.
- Intake Manifold Included:
- Yes
- Intake Material:
- Aluminum
- Intake Color:
- Natural
- Intake Manifold Name:
- Edelbrock Performer RPM Air Gap
- Lifters Included:
- Yes
- Timing Chain and Gears Included:
- Yes
- Pushrods Included:
- No
- Make:
- Mopar
- Engine Family:
- Mopar small block LA
- Engine Sizes:
- 5.6L/340-5.9L/360
- Years:
- 1968-1991
