1397 are 1507

[2Wheels2Live]

Do the tranny.....leave the top-end alone except for turbo slugs and a spacer and go boost 280+ any time ponies should make you happy

 

[dadofthree]

Do the tranny.....leave the top-end alone except for turbo slugs and a spacer and go boost 280+ any time ponies should make you happy

Agreed

 

[FrankPeden]

A 1507 can live on the street daily. My partner in crime rides one every and I mean every day he can. No cooling system modification needed.
Honestly, it depends on your wants and needs from the engine. You can make a stock bore and stroke engine run, trust me.

Frank from Tejas