Other products by IMCO
Item #: 02-8041
Reg. Price: USD $1,106.00
Our Price: USD $995.40


Thumper Power Big Block Manifolds (Black) *Manifolds Only, No Risers

IMCO's affordable alternative to stock cast iron Chevy manifolds. Our all cast aluminum manifolds will increase Horsepower, RPM, and Torque by 5 to 7% over stock cast iron manifolds and risers at a fraction of the cost. We have designed Thumper Power for everyone whether you're a high performance or family recreation boater. Kits are available for Chevy big block, small block, and V-6 motors. Available in black powder coated, optional hard anodized for corrosion (prior to powder coat), and polished. (SOLD IN PAIRS)

Shift, EFI, or ECM brackets sold separately.

All kits include all necessary mounting hardware, chromed water fittings, and gaskets.


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