How much HP can a stroker Flathead make? I'm talking a 60 or 80 over block with forged pistons, aftermarket rods and stroker crank. Good Alum heads and a 4 barrel intake and carb--it's for Bracket racing/ drag racing. Is 200HP doable? Or closer to 175? Dutch
In 1955 a 296 cu in flathead would dyno about 180 hp. Thirty five to 40 yrs later people like Kenny Kloth were in the vicinity of 300 with a stock bore & stroke '51 Merc, he ran a '51 Merc car in production cl*** at Bonneville and set a record around 150, it takes more than 200 hp to do that, that was around 1991-94 that I witnessed it. To go drag racing the engine needs to be reliable & consistent. There are a lot of new ideas on port work to increase flow, I suggest you search out these people for ideas. I ran a S.C.O.T. supercharged 286 cu in in my Pinto in 1978 at Bonneville, we estimated it made over 300 and it also melted the pistons at 175 mph. Sure was fun tho.
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