Login
See us on:
Visit CP on Facebook Visit CP on Instagram Visit CP on YouTube
Is your boat in the gallery?
Image Gallery  
Instructions & Guides:
Instructions  
Find Parts by Mercury Model:
OEM Part Finder  
What's popular today?
Popular Items  
What are you looking for Today?

Need Help? Call Us:

1-800-225-9871

Outside the USA? Call 707-585-9871

IMCO Marine

Thumper Power Small Block Manifolds (Black)
Your Price:
$1,129.99

Thumper Power Small Block Manifolds (Black)

421-02-8037

Thumper Power Small Block Manifolds (Black)

Thumper Power Small Block Manifolds (Black)(Sold in pairs)

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.

  Kit Includes  
QTY Description P/N
2 TP-Small Block Manifolds (Black) 02-1003
12 3/8-16 x 4 3/4" Bolts 08-010806232
8 3/8-16 x 2 1/2" Studs 08-130806141
8 3/8-16 Nuts 08-200806001
20 3/8" AN S/S Washers 08-100800001
2 3/8 NPT to 1" Hose 90° Fittings 09-2016
6 3/4 NPT Pipe Plugs Brass 09-2017
2 Manifold Gaskets 11-1009
2 Riser Gaskets 11-1007
4 Compression Seals 11-4003

Thumper Power Small Block Manifolds (Polished)
Your Price:
$1,169.99

Thumper Power Small Block Manifolds (Polished)

421-02-8039

Thumper Power Small Block Manifolds (Polished)

Thumper Power Small Block Manifolds (Polished) (Sold in pairs)

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.

  Kit Includes  
QTY Description P/N
2 TP-Small Block Manifolds (Black) 02-1004
12 3/8-16 x 4 3/4" Bolts 08-010806232
8 3/8-16 x 2 1/2" Studs 08-130806141
8 3/8-16 Nuts 08-200806001
20 3/8" AN S/S Washers 08-100800001
2 3/8 NPT to 1" Hose 90° Fittings 09-2016
6 3/4 NPT Pipe Plugs Brass 09-2017
2 Manifold Gaskets 11-1009
2 Riser Gaskets 11-1007
4 Compression Seals 11-4003

Thumper Shift Bracket
Your Price:
$24.99

Thumper Shift Bracket

421-02-9190

Thumper Shift Bracket - Must order 1 of each bracket per engine. Also used with Powerflow LS Chevy Exhaust

Tie Bar - Alpha
Your Price:
$759.99

This Part has options, please click the button below to order.

Tie Bar - Alpha Gen 1

137-9428

Alpha Gen 1 - Saddle Mount is 3.42" Wide

The tie bar saddles are formed out of 1-1/4" thick 316 stainless steel Pivot pins are machined from 3/4" diameter round bar and are stepped for a 3/16" thick retaining washer Clevis ends are investment cast 316 for superior strength and drive misalignment The tie bar is machined from solid 1" diameter and polished to a mirror like finish.

Tie bars take 7-10 days to build and are NON-RETURNABLE


Tie Bar - Alpha Gen 2
Your Price:
$989.99

This Part has options, please click the button below to order.

Tie Bar - Alpha Gen 2

137-9429

Alpha Gen 2 - Saddle Mount is 6.37" Wide

The tie bar saddles are formed out of 1-1/4" thick 316 stainless steel Pivot pins are machined from 3/4" diameter round bar and are stepped for a 3/16" thick retaining washer Clevis ends are investment cast 316 for superior strength and drive misalignment The tie bar is machined from solid 1" diameter and polished to a mirror like finish.

Click here to see part drawing and replacement parts breakdown

Tie bars take 7-10 days to build and are NON-RETURNABLE


Tie Bar - Dual TRS Outdrive Tie Bar
Your Price:
$869.99

This Part has options, please click the button below to order.

Tie Bar - Dual TRS Outdrive Tie Bar

137-9427

Dual TRS Outdrive Tie Bar

The tie bar saddles are formed out of 1-1/4" thick 316 stainless steel Pivot pins are machined from 3/4" diameter round bar and are stepped for a 3/16" thick retaining washer Clevis ends are investment cast 316 for superior strength and drive misalignment The tie bar is machined from solid 1" diameter and polished to a mirror like finish.

Tie bars take 7-10 days to build and are NON-RETURNABLE

Click here to see part drawing and replacement parts breakdown


Tie Bar - Bravo

Your Price:
$759.99

This Part has options, please click the button below to order.

Tie Bar - Mercruiser Bravo 1, 2 , 3 Outdrives

137-9423

Tie Bar - Bravo 1, 2 and 3

The tie bar saddles are formed out of 1/4" thick 316 stainless steel and are 2" wide. Pivot pins are machined from 3/4" diameter round bar and are stepped for a 3/16" thick retaining washer Clevis ends are investment cast 316 for superior strength and drive misalignment The tie bar is machined from solid 1" diameter and polished to a mirror like finish.

Click here to see part drawing and replacement parts breakdown

Tie bars take 7-10 days to build and are NON-RETURNABLE

The center to center of the drives must be given to order this part as it is built to customers specs.


Round Tubing 2.250” Dia x .250” Wall x 1.000” Polished Brass
Your Price:
$9.99

Tie Bar Material 2.250” Dia x .250” Wall Polished SS Per Inch

421-TB-4

Tie Bar Material 2.250” Dia x .250” Wall Polished SS Per Inch

NOTE: This is not a Tie Bar. If you need additional length added to the base 18" length of an applicable Imco Tie Bar, add 1 quantity for every inch extra you need. For example, you need a 32" tie bar, you need to add 14 quantity of this part to your order along with your choice of Imco Tie Bar model.


Tiller Arm & Bolt (Each)
Your Price:
$33.99

Tiller Arm & Bolt (Each)

421-02-7548

Tiller Arm and S/S Allen BoltTiller Arm and S/S Allen Bolt (Sold Each)

Tilt Pin Ass. All Mercury HP Outboard Motor Brackets Polished 304 SS
Your Price:
$238.99

Tilt Pin Ass. All Mercury HP Outboard Motor Brackets Polished 304 SS

421-TP-1

Tilt Pin Ass. All Mercury HP Outboard Motor Brackets Polished 304 SS


Top Cap Lid
Your Price:
$111.99

Top Cap Lid

421-01-2071

Top Cap Lid


Tower Race (SCX, SCX4, SCXT, SCX4T)
Your Price:
$81.99

Tower Race (SCX, SCX4, SCXT, SCX4T)

421-10-6041

Tower Race (SCX, SCX4, SCXT, SCX4T)

Tower Race, race used on case tower and on the cap.
2 per Upper Gear Assembly


Transom Bracket Kit for 34.000” Drive Centers Polished 316/304 SS
Your Price:
$572.99

Transom Bracket Kit for 34.000” Drive Centers Polished 316/304 SS

421-TB-34

Transom Bracket Kit for 34.000” Drive Centers Polished 316/304 SS


Transom Bracket Kit for 34.500” Drive Centers Polished 316/304 SS
Your Price:
$572.99

Transom Bracket Kit for 34.500” Drive Centers Polished 316/304 SS

421-TB-345

Transom Bracket Kit for 34.500” Drive Centers Polished 316/304 SS


Transom Bracket Kit for 35.000” Drive Centers Polished 316/304 SS
Your Price:
$572.99

CALL TO ORDER

Transom Bracket Kit for 35.000” Drive Centers Polished 316/304 SS

421-TB-35

Transom Bracket Kit for 35.000” Drive Centers Polished 316/304 SS


Transom Bracket Kit for 35.500” Drive Centers Polished 316/304 SS
Your Price:
$572.99

Transom Bracket Kit for 35.500” Drive Centers Polished 316/304 SS

421-TB-355

Transom Bracket Kit for 35.500” Drive Centers Polished 316/304 SS


Transom Bracket Kit for 36.000” Drive Centers Polished 316/304 SS
Your Price:
$572.99

Transom Bracket Kit for 36.000” Drive Centers Polished 316/304 SS

421-TB-36

Transom Bracket Kit for 36.000” Drive Centers Polished 316/304 SS


Transom Bracket Kit LH Reverse Polished 316/304 SS
Your Price:
$205.99

Transom Bracket Kit LH Reverse Polished 316/304 SS

421-TB-32

Transom Bracket Kit LH Reverse Polished 316/304 SS


Transom Bracket Kit LH w/ Bulkhead Tubes Polished 316/304 SS
Your Price:
$258.99

Transom Bracket Kit LH w/ Bulkhead Tubes Polished 316/304 SS

421-TB-31

Transom Bracket Kit LH w/ Bulkhead Tubes Polished 316/304 SS


Transom Bracket Kit RH Reverse Polished 316/304 SS
Your Price:
$205.99

Transom Bracket Kit RH Reverse Polished 316/304 SS

421-TB-22

Transom Bracket Kit RH Reverse Polished 316/304 SS


Loading...