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View Full Version : Mercury Factory Racing SST 140 Bridgeport Powerhead



CUSTOM PERFORMANCE 1
01-03-2017, 07:41 PM
I have decided to let my 92 Factory Racing SST 140 Bridgeport power head go. It suffered a mild detonation on #3 and #4 cylinders. The nicasil appears to be undamaged, just some aluminum transfer and lightly smeared 2 pistons. The other 4 holes are perfect. Never windowed. It was last race prepared by Diamond Marine. The crank is perfect, has big 5250 rods and pistons have been milled at the bridge for cooling. Comes with matching front half, factory intake and factory SST 140 carbs with velocity plate. This was a complete racing engine from Mercury on a 12" mid and #6 speedmaster in 1992. Powerhead is one of the last ones made. Includes bolts and end caps. There is alot of work in the block and it ran really hard on our champ boat. Also have video of it running on the champ boat. First $950.00 plus the ride or pickup in Stuart, Fl. Call 772-341-4882

Krazymaan
01-04-2017, 08:47 AM
So this would be a 10k plus rpm 140hp left hand drive race fuel only motor?

CUSTOM PERFORMANCE 1
01-04-2017, 12:04 PM
SOLD!!! Thanks Scream and Fly!!!!

rock
01-04-2017, 03:38 PM
i'm surprised it lasted that long. Great buy.

Rock

Krazymaan
01-04-2017, 08:25 PM
I was gonna buy it but nobody told me what direction the motor spun. Oh well.

CNC_Guy
01-04-2017, 08:52 PM
Not hard to switch it back.

Krazymaan
01-04-2017, 09:01 PM
Not hard to switch it back.
Too late for that.
Woulda made a great little STV motor.

David - WI
01-04-2017, 09:29 PM
Weren't they basically a 245hp 2.4L Bridgeport powerhead?

363987

STV_Keith
01-05-2017, 12:17 PM
Maybe before Diamond Marine went to work on this one. ;)