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Big bore 45 cylinders

Post Tue Mar 01, 2011 10:47 pm

Posts: 42
Location: seattle, washington
Needing information clarification regarding cylinder bore size for a 45 WL cylinder.

looking at the Victory Library tech papers on engine displacement, i understand .100 oversize is the biggest size piston, if a builder was to use a indian scout piston with a .130 oversize and fit the wrist pin etc what will happen to the cylinder casting if this engine is raced ?? in the literature it has a notation quote "will have temperature problems" does the thin cylinder wall cause overheating??

has any builders out there run the scout pistons for a few more cc when you already have stroker flywheels??

I guess there is no way to make a 45 WL cylinder "big bore" ?? is that correct.

I understand the K model top end on the WL, can the k model cylinder be bored bigger??

Just trying to map out a engine plan for the biggest CC i can get from a WL engine, from the Tech paper literature it looks like with the special 4 13/16 stroker flywheels the biggest we can go is 60.00" .

Post Wed Mar 02, 2011 3:00 am

Posts: 575
Location: devon,england
heres a thread to read.

Dude, check out that jibhead, he's crazy. Hasn't been sober for 40 years

Post Thu Mar 03, 2011 7:45 pm

Posts: 112
i have a set of wldrs 150 over fit to scout pistons. i don't know there history but they look like they were run. hard!

Post Thu Mar 03, 2011 7:49 pm

Posts: 391
My KHK had Scout pistons in it when I first got it. The spigots were paper thin and starting to crack, but it had been run like that for a while!

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