Calhoun Marine/ Chapman Racing

Calhoun Marine/ Chapman Racing Marine sales and service, outboard racing service Calhoun Marine is a locally owned marine service business.

We service all major brands of outboards and sterndrives. We also fabricate and build custom parts for the outboard racing community. We have a 1/4 Mile outboard dragboat racing team that takes us to various states across the country. Engine building, machining services, custom drag racing mid-sections for outboards. Parts modifications on most all Mercury Marine V6 outboard powerheads. Give us a call and we will help take care of your marine needs.

12/10/2025
Christmas special !! Offering 15% off all mid-section shortening on Mercury Yamaha OMC This is an average savings of $50...
12/08/2025

Christmas special !!

Offering 15% off all mid-section shortening on
Mercury
Yamaha
OMC

This is an average savings of $500 depending on version and options.

Contact us today to lock in your price with a deposit and you can ship your components when you’re ready for the work. Offer expires by end of December.

Message us through this page or call 803-897-3806
You can send a text to 803-539-4908

Original Yamaha “drag” 14”x24”P 9/10 because it’s been run. Has Mercury aluminum hub, small shaft. $500 plus shipping.
05/17/2025

Original Yamaha “drag”
14”x24”P
9/10 because it’s been run.
Has Mercury aluminum hub, small shaft.
$500 plus shipping.

PSA to all Yamaha four stroke outboard owners. Remove your cowling and check for bird nests inside. They scurry into the...
02/27/2025

PSA to all Yamaha four stroke outboard owners. Remove your cowling and check for bird nests inside. They scurry into the air openings of these large cowlings and build nests on the powerhead. It makes a huge mess and debris can get sucked into the air inlet system. It’s a m***a to get it all out because of all the components that trap the leaves and straw. Get a motor cover and put over it when parked to prevent this. We’re seeing this a lot on mostly Yamaha four strokes. Just a heads up before you start it and drop the hammer down on it !!!!!

Mercury 59c.i  40/50 electric start parts Flywheel with good magnets, starter tested and works, solenoid.  $250 Mercury ...
11/20/2024

Mercury 59c.i 40/50 electric start parts
Flywheel with good magnets, starter tested and works, solenoid. $250

Mercury 59c.i / 50hp carbs $150

Two tiller handles from 4 cylinder 40hp two stroke
One has been welded but has done fine for years.
$125 each.

All items are plus shipping.

803-897-3806
803-539-4908

( SOLD deposit paid on it )Mercury V6 20” housing with added offshore exhaust snout. Has floor plate holes in it also. $...
11/05/2024

( SOLD deposit paid on it )

Mercury V6 20” housing with added offshore exhaust snout.
Has floor plate holes in it also.

$750 plus shipping.

803-897-3806 or 803-539-4908

10/17/2024

An autobiographical journey through life, loss, lessons and love, This book shares the stories of two women who faced battles against cancer and the man that was a husband to them at two very different periods in his life. A journey he never imagined he'd take. Along the way you'll learn of how h...

( SOLD ) Mercury V6 cut down mid section15” Housing, swivel bracket, cylinder, and clamp brackets. Housing and tiller ar...
10/03/2024

( SOLD )

Mercury V6 cut down mid section
15”
Housing, swivel bracket, cylinder, and clamp brackets.
Housing and tiller are drilled for one piece exhaust plate. Has solid lower mounts from a promax mid.
Added slash cut exhaust outlet.

$3,000 plus shipping

803-897-3806 or text 803-539-4908

We have received several messages and calls about the weld on Mercury exhaust snouts being available. We now have materi...
09/23/2024

We have received several messages and calls about the weld on Mercury exhaust snouts being available.

We now have material to do another run of them. They will be like the one pictured, smooth top finish.

We can make a slash cut version also upon request.

They’re hand built and a raw finish, will require the cosmetic finishing once welded on. Can be mig or tig welded ( we tig when installed in housing )

Built from 1/4” 6061 plate, each one is test fit to a Mercury V6 housing ( 2.0, 2.4, 2.5 liter standard housing ) and built in a jig.

They will be built to order once purchase is made.

Current price due to time and material cost is $318 to your door in the lower 48 (USPS priority mail )

Installation is also offered if you ship us your housing which is $600 finished in paint plus return shipping.

Message me or call 803-897-3806 to purchase. You can also send a text to me at 803-539-4908

-Michael Chapman

Mercury 3 liter torqemaster gear housing with custom low water pick up nose cone. Housing is from a late model 250 ProXs...
09/18/2024

Mercury 3 liter torqemaster gear housing with custom low water pick up nose cone.

Housing is from a late model 250 ProXs Optimax
Cone was a vintage land-n-sea non low water pick up cone, modified to LWP.
The case receives water in the same fore and aft passages that feed the water pump.
It’s fully welded with duraglass filler for the blending.

Housing only

$1,300 plus shipping.

( SOLD ) Mercury V6 gear housing only. Ratcheting style case from a 200 For non pre-load pin driveshaftNose cone with ho...
09/05/2024

( SOLD )

Mercury V6 gear housing only.
Ratcheting style case from a 200
For non pre-load pin driveshaft
Nose cone with hose delete passage.
Notched down for 15” mids also.

$1000 plus shipping.

803-897-3806

Address

1166 Midway Road
Elloree, SC
29047

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+18038973806

Website

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