Lynn's Big Stroke Flatheads

Lynn's Big Stroke Flatheads I started building Flatheads professionally 2 years ago, but have been repairing, and building them for over 50 years.

I have built and shipped out over 30 engines in the last 2 years, and have shipped them all over the world. If you are interested please call or message me. I will be happy to build you a Flathead anyway you want it. I am currently working on a Flathead with a 4.41inch stroke. I hope to obtain over 300hp with this engine without the assist of a supercharger. I will be posting the Dyno results when the engine is complete.

05/23/2018

To all those that do not know my father Lynn E. passed away in January. I have decided to follow in his footsteps and will continue to build flatheads there will be a delay in production due to family matters this year as we have a lot of things to work out.
If you are interested in a Flathead build please contact Larry at J&L Engines in Allison, Iowa. Larry and I will do our best to fill orders.
I plan on reducing some inventory so if you are looking for flathead parts please message me on facebook or email me at [email protected] with a list of the parts you are looking for.
I will continue to offer the same services my father did with the same level of quality and care that goes into building these amazing classic motors.
Thank you.
Lynn M. Stevenson
Rest in peace dad.

12/09/2017

We apologize for the delay in the Dyno results for the Big Stroke. After a conversion to E85 we are having troubles with tuning the EFI system. With winter upon us we will not be able to perform the test in the 42' until spring. However there is a sister motor in the works now that we plan to Dyno as well and won't have to wait for the snow to melt. We will keep you posted.

05/04/2017

Just started the big stroke for the first time in the 42'. 315 cubic inch throttle body fuel injected flathead awesomeness.

12/09/2016
12/09/2016

We are just getting this page up, so please have patience. We will be working on getting more photos and videos uploaded in the following weeks

Address

22148 IA-3
Allison, IA
50602

Telephone

+13192158908

Website

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