Mp Performance Engines

Mp Performance Engines Powersports Machine shop. Crank rebuilds,cylinder head work, engine rebuilds, suspension, porting, cylinder boring, cylinder replating, case repair, Parts!

2004 cr125 motor, this came in pretty rough. Full top and bottom, v***r blasting, all bearings , seals, vintco clutch et...
08/27/2026

2004 cr125 motor, this came in pretty rough.

Full top and bottom, v***r blasting, all bearings , seals, vintco clutch etc. Fun build.

08/21/2026
Magic!!! Yfz450 dropped a valve, looks better then new. 🪄🧙‍♂️
08/17/2026

Magic!!! Yfz450 dropped a valve, looks better then new. 🪄🧙‍♂️

Trx450r. Expoxy port-woods/xc. Moldstar 90 intake seats, bronze guides all around, titanium std pro-x intakes, plus 1 ki...
08/15/2026

Trx450r. Expoxy port-woods/xc. Moldstar 90 intake seats, bronze guides all around, titanium std pro-x intakes, plus 1 kibble exhaust valves, ferrea .415” spring package. Reliable build that will produce some HP. Packed up and off to tennesee .
🤠📦✈️

5 angles, shining like a 💎
08/14/2026

5 angles, shining like a 💎

Yfz450 factory cams got the gears tig welded, brand new oem crank out the box with .0015” runout, trued to .0005”.Back t...
08/13/2026

Yfz450 factory cams got the gears tig welded, brand new oem crank out the box with .0015” runout, trued to .0005”.

Back to NY they went!

Couple carb model yfz450 heads. Guides, seats cut, resurfaced , kibble stainless with spring kits. 👌
08/12/2026

Couple carb model yfz450 heads. Guides, seats cut, resurfaced , kibble stainless with spring kits. 👌

This one was cool. Factory rmz250 tensioner converted to manual.Stainless rod, steel threaded insert, aluminum sleeved i...
08/03/2026

This one was cool. Factory rmz250 tensioner converted to manual.

Stainless rod, steel threaded insert, aluminum sleeved inside for additional support, heat treated end, and of course v***r blasted. 🙋‍♂️

🤌👌 packed up on her way back home!

06 Trx450er crank rebuild, wossner rod kit, .0005” runout. 👌
08/01/2026

06 Trx450er crank rebuild, wossner rod kit, .0005” runout. 👌

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Mail Order Only
Carver, MA
02718

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

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