Performer RPM Chrysler (63cc combustion chamber)Performer RPM Chrysler
Performer RPM Chrysler heads deliver outstanding performance in non-emission
1967-91 Chrysler 318-340-360 c.i.d. engines
- Designed for non-emission 1968-73 340 c.i.d. Chryslers, RPM Chrysler 340 heads have
chambers machined .060" for clearance with early high-compression engines
- These heads are capable of 417 horsepower and 397 ft/lbs. of torque on pump gas with
an Edelbrock Performer RPM intake manifold and matching camshaft
| Combustion chamber volume |
63cc & 65cc |
| Intake runner volume |
171cc |
| Exhaust runner volume |
77cc |
| Intake valve diameter |
2.02" |
| Exhaust valve diameter |
1.60" |
| Valve stem diameter |
11/32" |
| Valve guides |
Manganese bronze |
| Deck thickness |
5/8" |
| Valve spring diameter |
1.46" |
| Valve spring maximum lift |
.575" |
| Rocker stud |
N-a |
| Guideplate |
N-a |
| Pushrod diameter |
5/16" |
| Valve angle |
18° |
| Exhaust port location |
Stock |
| Spark plug fitment |
14mm x 3/4 reach, gasket seat |
| Made In |
USA |
Technical Notes: The special valvetrain in the 1970 340 T/A is not compatible with these heads. Match
with Edelbrock head gasket sets. Bare heads will have valve guides & seats installed, but
will require final sizing & a valve job to match the valves you will be using. Recommended spark plugs
14mm x 3/4" reach with flat gasket seat (Champion RC12YC).
Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench
| #60779 | #60179 |
| Valve Lift |
.100" |
.200" |
.300" |
.400" |
.500" |
.600" |
.700" |
| Intake |
69 |
129 |
188 |
232 |
249 |
251 |
- |
| Exhaust |
64 |
108 |
142 |
171 |
183 |
190 |
- |