i put in a post before but didnt get and replies so ill pop it out again. how much cc's can you get a trailblazer to with a stroker kit ? do you NEED a new carb ? and how much horses do you get out of it?

 

The person you need to talk to is the Arizona BadBoy - Dennis Shotwell . (Not to be confused with the Illinois GoodBoy - Thats me :-) ) I believe he does a 7mm stroker on the 250s .

It goes something like this :

Radius of bore squared times stroke times PI = displacement

So :

Stock is 36 x 36 x 60 x 3.14 = 244.2 cc

7mm stroker is 36 x 36 x 67 x 3.14 = 272.6 cc

Gain in cc's = 28.4 cc

Percentage of displacement gain = 10.5%

There you have it !

You'll have to ask Dennis about the carb question , I would be just guessing if I gave an answer.

Rick Ritter

 

He also has a 12mm stroker kit too. But I think he said they were using the 300cc cyclernder woth the 12mm stroker. Best to talk to AZ badboys

 

what should i get first then a reed conversion or the stroker kit?

 

you need to do the reed conversion first