PRO-PORT™ + HI-REV™ CYLINDER HEADS SERIES 25 SCAT PRO-PORT TYPE 1 CYLINDER HEADS ARE ASSEMBLED WITH 35 YEARS OF EXPERIENCE AND HI-REV™ COMPONENTS: • • • • •
1-piece 214N stainless steel valves with manganese racing valve guides for increased durability Competition 3-angle valve job for superior seal and velocity Combustion chambers are unshrouded around the valves for maximum flow and flame travel Long reach 12mm x 3/4” spark plug bosses for strength Manifolds (sold seperately) are match-ported and polished to each head for maximum flow
“WEDGE-PORT” 44mm in. x 37.5mm ex. “SUPER-D” 42mm in. x 37mm ex.
• Large port design for drag racing at high RPM (4,000 - 8,000 RPM) and lift • Swirl-polished with venturi intake and exhaust runners • Special shaped combustion chamber for big power potential 25060 25060-94 25060-94HL 25070 25070-94 30158 30161
‘WEDGE-PORT’ 92/90.5mm dual spring Polished Heads – Each ‘WEDGE-PORT’ 94mm dual spring Polished Heads – Each HI-LIFT WEDGE with Chevy Springs and .200” longer valves SUPER-D 90.5/92mm dual spring cylinder head - Each SUPER-D 94mm dual spring cylinder head - Each ‘D-Port’ 2x40/44/48IDF Weber/Dellorto DRLA Manifold – Pair ‘D-Port’ Intake Gasket – 10 Pack
40mm in. x 37.5mm ex. “MINI-D-PORT”
with dual valve springs & 4140 chromoly retainers • Smart port design for total performance (2,000 - 6,000 RPM) • Swirl-polished with venturi intake and exhaust runners • Efficient combustion chamber (1915cc - 2275cc) 25072 25072-94
92/90.5mm BORE ‘MINI D-PORT’ HI-REV Polished HEADS – Each 94mm BORE ‘MINI D-PORT’ HI-REV Polished HEADS – Each
STREET-PORT – 40mm in. x 35.5 ex.
with single valve springs X 4140 retainers 25035 25035-92 25035-94
85.5mm BORE ‘STREET-PORT’ HI-REV HEADS – Each 92mm BORE ‘STREET-PORT’ HI-REV HEADS – Each 94mm BORE ‘STREET-PORT’ HI-REV HEADS – Each
P: 310. 370. 5501
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F: 310. 214.2285
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