Pro-x 370

[89rwfo]

Does anyone run a PRO-X 370. Thinking of building one but was wondering if it was good for all around riding,reliability

Thanks

[C-LEIGH RACING]

If you build it, get those crank tins welded on to the webs to keep them from shifting, cracking & coming off.

Ol 370 will have some spunk if ported & piped right, but I wouldnt take a chance on a crank not welded up.
Might sound like a lot of extra work to get done, but when them tins come off a stroker, it gits ugly after that.
Neil

[destey]

that 370 must have some punch. How much does the average one put out for HP?

[C-LEIGH RACING]

Realy depends on carb, porting & pipe, but if done right you could expect in the 55 to 75 hp ranges.
Neil

[CorvetteZ06]

Originally posted by 89rwfo
Does anyone run a PRO-X 370. Thinking of building one but was wondering if it was good for all around riding,reliability

Thanks

I'll let ya know in a few weeks, I have a Pro-X 350cc PV cylinder, with a +4mm stroker, making it around 366cc i belive. should be a tourque monster.

[89rwfo]

OK guys thanks Im getting ready to pull the trigger on buying one. I have a buddy building a 310 to out run my stock cylinder. I am going to rain on his parade.

[89trx250r]

hahaha just build your motor right under his nose and when you go to run hell be like uhh where did that come from :)

[morse250r]

here is my 363 cc

[KSRRider]

I'm not a big fan of my 370 but that doesn't mean that they can't be a good engine setup. . .

My sleeve moved inside my jug on two different occasions causing coolant leaks and big headaches. Started with a brand new jug too! But what I hear from the engine builders I've talked to about this is that it's not uncommon to have these types of issues with the BB pro-x/esr cylinders.

I'd do a sphinx or small puma before I went back to an ESR or Pro X but that is JMO. Hope you get a good jug!!!