|
 |
Performer LT1
Designed for 1992-97 LT1 small-block Chevy engines, these Performer cylinder heads deliver 24 horsepower over stock and raise the peak power level by 500 rpm. These heads are designed to accept factory style self-aligning rockers. Performer LT1 cylinder heads are 50-state street legal and accept factory centerbolt valve covers. They feature exhaust ports in the stock location for use with stock or aftermarket exhaust
manifolds and headers. Match with RPM Air-Gap intake #7107, throttle body #3809 and camshaft #2108 for the Total Power Package combo.
Cylinder Head Specifications |
| Combustion chamber volume |
54cc |
| Intake runner volume |
170cc |
| Exhaust runner volume |
60cc |
| Intake valve diameter |
1.94" |
| Exhaust valve diameter |
1.55" |
| Valve stem diameter |
11/32" |
| Valve guides |
Manganese bronze |
| Deck thickness |
5/8" |
| Valve spring diameter |
1.46" |
| Valve spring maximum lift |
.600" |
| Rocker stud |
3/8" |
| Guideplate |
N/A |
| Pushrod diameter |
5/16" |
| Valve angle |
23° |
| Exhaust port location |
Stock |
| Spark plug fitment |
14mm x 3/4 reach, gasket seat |
| Made In |
USA |
| Carb EO# |
D-215-70 |
|
|
Technical Notes: Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. Match with Edelbrock head gasket sets on pages 126-128. |
| |
| Description |
Bare (Single) |
Complete (Single) |
| Performer LT1 |
61919 |
61905 |
|
Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
| #61909 |
| Valve Lift |
.100" |
.200" |
.300" |
.400" |
.500" |
.600" |
.700" |
| Intake |
61 |
117 |
174 |
220 |
242 |
232 |
- |
| Exhaust |
52 |
100 |
174/140 |
167 |
184 |
192 |
- |
|
AMC
Small Block
