Page 44 - 2018 Master Catalog

INSULATING PHENOLIC SPACERS

Advanced GE phenolic material offers superior insulating qualities. Phenolic
transfers 10 times less manifold heat to the carburetor, resulting in cooler, more
dense fuel changes.

41601 41604 41605 41603 41602
1” Holley 4150/4160 2” Holley 4150 1” Holley 4-hole, 4150/4160 2” Holley 4500 1” Holley 4500
Standard open plenum Standard open plenum 1.775” Bore plenum Standard open plenum Standard open plenum

POWER FLOW
PHENOLIC SPACERS 41618

• Transfers cooler and more dense fuel/air mixtures
• Designed for maximum undisturbed air flow
• 15 HP increase over standard 1” open spacer!

PART NO. DESCRIPTION MODEL CFM
UNIVERSAL
41611 1” Pro grade phenolic carb spacer 4150 750
41612 1” Pro grade phenolic carb spacer 4150 850
41615 1” Pro grade phenolic carb spacer 4150 Cloverleaf
41616 1” Pro grade phenolic carb spacer 4500 1050
41617 1” Pro grade phenolic carb spacer 4500 1150
41618 1” Pro grade phenolic carb spacer 4500 1150
41615

VELOCITY AIR CARB SPACERS
ALUMINUM
The V.A.C. spacer is designed to channel the intake signal through the plenum area to the
maximum positive area of vacuum created in the runner. By doing so, fuel atomization is 41651 41653
balanced among air molecules to form a consistency among the intake pulses resulting in
a smoother powerband for the engine.
PLASTIC
41645 41647
2 Barrel 2 hole 2” Four hole 4500 Holley
4412 Holley adapter to 4150 Manifold

LIGHTWEIGHT ALUMINUM
1” Four hole 2” Four hole 41648 41652
4150/4160 Holley 4150/4160 Holley 41649

41646
2” Four hole
4500 Holley
1” Four hole 2” Four hole
1” Four hole 4150/4160 Holley 4150/4160 Holley
4500 Holley
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