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SALE!! $899.95 pair Limited quantities!
Small-Block Ford: #5023 | #5025 specs
Chamber Volume 60cc
Deck thickness 5/8"
Valve spring diameter 1.25"
Max lift .550"
Valve spring installed height 1.750"
Rocker studs 3/8" with guide plate
Pushrod diameter 5/16"
Intake port volume 170cc
Intake valve diameter 2.02"
Exhaust port volume 60cc
Exhaust valve diameter 1.60"
Retail Price $973.95 / pair
Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O #5023, #5025
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 65 121 174 216 242 249 -
Exhaust 42 92 130 150 162 168
Technical Notes: Use with hydraulic camshafts .550" max lift. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. Requires hardened pushrods. 289-302 cid with 7/16" head bolts requires #9680 head bolt bushing kit. 1.90" heads are ideal for stock pistons; 2.02" heads require additional piston to valve clearance. Not legal for sale or use on pollution controlled motor vehicles.
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