Best Performance Parts for Harley-Davidson™ bikes, incl. M8

COVID-19 UPDATE

April 01 2020

Dear Customers, please know that Speed And Science is still accepting all online orders.
Our staff is working extra-hard to make sure sure that your orders are processed and shipped as soon as possible, however, some delays may occur.

We are taking current situation seriously, and so should you. Please follow your local rules and regulations to a dot.

THANK YOU!!

NEW PRODUCT

Performance never looked so GOOD!!!!

Speed And Science - Performance Parts for Harley-Davidson 1

Speed And Science presents true performance parts for Harley-Davidson ™ TwinCam and Shovelhead.

All proudly designed and manufactured on Canada’s West Coast.

We’ve been cutting metal since 1939! Yes, that’s right.

Enjoyed and Tested Worldwide.

5 star		90%
4 star		9%
3 star		0%
2 star		0%
1 star		0%
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Rated 4 out of 5
Gabriel V. (verified owner) – February 17, 2020
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SHOVELHEAD VALVETRAIN KIT
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Rated 4 out of 5
Gabriel V. – February 17, 2020
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This is not engine, this is ART! And yes, it's worth every cent. It's not only the price, it's also the Speed And Science attitude and post sales.

Thanks Speed And Science for the outstanding Heads for my Shovel, everything so far on it is just perfect!

Piece of art!! The shape of the intake and exhaust ports are perfect. Proud to be a dealer of Speed And Science products in the Netherlands.

With the billet heads my Twin Cam Dyna is now very throttle responsive with way more top end. Thank you!!

Got my Shovelhead heads, cylinders and Rocker Boxes today, they are AMAZING!!

I’ve been working on Harley-Davidson engines about 40 years. I bought Speed And Science set of Shovelhead cylinders heads and rocker boxes - some of the best work I’ve ever seen!!!

Very impressed with the Speed And Science Shovel heads and cylinders. Much admiration from every one.

I got the Speed And Science heads and cylinders in Japan. Super nice, thanks!

I'm so impressed with the Speed And Science billet aluminum heads and cylinders, they're AWESOME!