LT's for 347 n/a

[misl302]

Hey all,

I'm dreaming about a 347 n/a project. Would 1-5/8" LT's be noticebly more restrictive than 1-3/4"? At what point do 1-3/4" LT's pay off?

Thanks.

 

[Grn92LX]

Your typical street 347 will need an 1 3/4", a 1 5/8" WILL be a botlleneck! Depending how wild you go, you'll need bigger, but typically most 400hp set ups will use an 1 3/4". What combo were you wet dreaming over?

 

[Smokedawg]

I would go with 1 3/4"....picked mine up from jdsperformance.com with 3" collectors...Got a damn good price on them too..

-Smoke

 

[misl302]

Thanks fellas.

Grn92LX, I'm actually considering staying with my Systemax heads and intake and replacing my TFS Stage 1 with an FTI custom. Back when I knew considerably less than I know now, I bought the Systemax "Race" kit from the infamous Excessive Motorsports (Missouri). The heads and intake are "fully ported and flowed", so I might give them a chance to prove that I wasn't totally ripped off! Unfortunately, the intake valves are only 1.90's. Anyways, if can swing it I would prefer to use AFR 185's.