Edelbrock 60255 Performer RPM Aluminum Cylinder Head for Small Block Ford
350-60255
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Performer RPM Aluminum Cylinder Heads - Complete
Designed for non-emissions 289, 302, and 351-Windsor Ford engines, these direct bolt-on heads deliver maximum performance in the 1500-6500 rpm range for all high performance street applications and our Performer RPM Power Package. Will not accept rail rockers.
Note: Aftermarket 289/302 heads including Brodix, Edelbrock, Ford Motorsport and World Products with 1/2'' bolt hole diameters (block is 7/16'' bolt hole), except 397-M-6049-P303 (''P'' style head). Require 350-9680 inserts with 350-8552 head bolt or 350-9680 insert with 070-154-3601. If head studs are desired use 070-154-4005 (includes inserts).Tech Tip: To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs such as the RC12YC (P/N 192-49776). They are 0.230'' shorter than a conventional spark plug and have a 5/8'' hex for easier access.
| Valve Lift | Intake | Exhaust |
| .100'' | 70 | 57 |
| .200'' | 128 | 104 |
| .300'' | 183 | 142 |
| .400'' | 219 | 163 |
| .500'' | 251 | 170 |
| .600'' | 255 | 174 |
| .700'' | 246 | 175 |
| Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O | ||
| Combustion Chamber Volume: | 60cc |
| Intake Runner Volume: | 190cc |
| Exhaust Runner Volume: | 60cc |
| 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: | 0.575'' |
| Rocker Stud: | 3/8'' |
| Guideplate: | Hardened Steel |
| Pushrod Diameter: | 5/16'' |
| Valve Angle: | 20° |
| Exhaust Port Location: | Stock |
| Spark Plug Fitment: | 14mm x 3/4'' Reach, Gasket Seat |
Specifications:
What length pushrods will I need with these heads for a 1991 Ford efi 351 windsor? With the new cam intake lift will be .534" and exhaust lift will be .559".
Can I use a stock Ford 351w EFI intake from a 1991 Ford F-350 with these heads?
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