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saltracer · 06-12-2023, 10:15 AM

I had talked to the guys that run the Thompson Door Car at Bonneville and they were running a supercharged flathead that was running 195mph in a modified roadster, so I figured they knew what they were doing, and they said they ran a small bore to keep the wall thickness up. Latter I purchased some stuff from Harry Sternemann including a block and the pistons that they had run in a lakester that ran over 200 mph and actually the pistons were even smaller at 82mm.

06-12-2023, 10:15 AM	#8
saltracer Senior Member Join Date: May 2014 Location: Lafayette, La. Posts: 100	Re: Flathead powered roadster drag racer I had talked to the guys that run the Thompson Door Car at Bonneville and they were running a supercharged flathead that was running 195mph in a modified roadster, so I figured they knew what they were doing, and they said they ran a small bore to keep the wall thickness up. Latter I purchased some stuff from Harry Sternemann including a block and the pistons that they had run in a lakester that ran over 200 mph and actually the pistons were even smaller at 82mm.