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Performer RPM - '86 & Earlier
Performer RPM cylinder heads have all of the same great features as our Performer series, but are available with straight or angled spark plug configuration to fit a variety of exhaust applications. Available with a polished finish for a show quality look!
Performer RPM Small-Block Chevy Cylinder Head Specifications |
| Combustion chamber volume |
64cc & 70cc |
| Intake runner volume |
185cc |
| Exhaust runner volume |
65cc |
| Intake valve diameter |
2.02" |
| Exhaust valve diameter |
1.60" |
| Valve stem diameter |
11/32" |
| Valve guides |
Manganese bronze |
| Deck thickness |
9/16" |
| Valve spring diameter |
1.46" |
| Valve spring maximum lift |
0.575" |
| Rocker stud |
3/8" |
| Guideplate |
Hardened steel |
| Pushrod diameter |
5/16" |
| Valve angle |
23° |
| Exhaust port location |
Stock |
| Spark plug fitment |
14mm x 3/4 reach, gasket seat |
| Made In |
USA |
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Technical Notes: Match with Edelbrock head gasket sets. 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. To use stock rockers on small-block Chevy heads, .100" longer than stock pushrods are required. Edelbrock pushrods #9629 are recommended. Use Head Bolt Kits on page 164 for easy installation. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. S/B Chevy heads may not be used on engines with less than 4" bore (262, 265, 283, 305, 307 c.i.d.) except with cams having less than .450" valve lift. |
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| Description |
Bare (Single) |
Complete (Single) Satin |
Complete (Single) Polish |
| EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC FLAT TAPPET APPLICATIONS |
| Performer RPM with angled plugs (70cc combustion chamber) |
60619* |
60719* |
607119* |
| Performer RPM with straight plugs (70cc combustion chamber) |
60639* |
60739* |
607319* |
| Performer RPM with angled plugs (64cc combustion chamber) |
60649* |
60999* |
609919* |
| Performer RPM with straight plugs (64cc combustion chamber) |
60889* |
60899* |
608919* |
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Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
| #60899 | #60909 | #60999 |
| Valve Lift |
.100" |
.200" |
.300" |
.400" |
.500" |
.600" |
.700" |
| Intake |
66 |
129 |
188 |
228 |
240 |
241 |
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| Exhaust |
55 |
98 |
131 |
152 |
162 |
168 |
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| Description |
Bare (Single) |
Complete (Single) Satin |
Complete (Single) Polish |
| EQUIPPED WITH SPRINGS FOR USE IN MECHANICAL FLAT TAPPET AND HYDRAULIC ROLLER CAMSHAFT APPLICATIONS |
| Performer RPM with angled plugs (70cc combustion chamber) |
60619* |
60715* |
607115* |
| Performer RPM with straight plugs (70cc combustion chamber) |
60639* |
60735* |
607315* |
| Performer RPM with angled plugs (64cc combustion chamber) |
60649* |
60995* |
N/A |
| Performer RPM with straight plugs (64cc combustion chamber) |
60889* |
60895* |
608915* |
| with straight spark plugs (Stock/Super Stock only).........60887* |
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Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
| #60719 | #60739 | #60759 |
| Valve Lift |
.100" |
.200" |
.300" |
.400" |
.500" |
.600" |
.700" |
| Intake |
73 |
140 |
200 |
238 |
244 |
244 |
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| Exhaust |
61 |
108 |
144 |
163 |
175 |
183 |
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AMC
Small Block
