muffler question

[aknight_sa]

hi guys,

befor i changed my engine from a SB 350 to a BB 454 but i still use my old mufflers (two standard ones)... will such a thing damage the engine as it might not give enough airr flow out of the engine or not?



thanks

 

[draggbody]

they will work, but not as efficently as you might want... especially going to a BB... if it is mostly stock i would run at least 2.5 in pipe... if it is "built" go w/ the 3"...

 

[JEBSR]

won't damage anything. May be fine, what size pipe are you running and are they factory duals or an aftermarket system?