400hp 5.0

[stykthyn]

Well with that kind of budget a 347 is completely doable. If it were me I would use a TFS track heat intake along with a set of AFR heads, and a custom grind cam from Jay Allen. Very knowledgable man that can point out all the parts you will need to squeeze all the most available hp from that puppy.

 

[90lxcoupe]

Your an engine builder and you came to a forum to figure out how to make 400 hp on a SBF? Also, tell your customer unless he drives like a girl to skip the t-5 and get a TKO

 

[clement]

efi 347, TFS FAC 190s and a TFS R or spyder intake, and a CI billet HR cam. thatll run low 11s and make 400rwhp fairly easily.

 

[fiveohwblow]

efi 347, TFS FAC 190s and a TFS R or spyder intake, and a CI billet HR cam. thatll run low 11s and make 400rwhp fairly easily.

This

 

[Bullitt95]

efi 347, TFS FAC 190s and a TFS R or spyder intake, and a CI billet HR cam. thatll run low 11s and make 400rwhp fairly easily.

That's basically the same 400rwhp set-up that I described except for the cam. A properly specced custom cam should do even better than the CompCams XE276HR-12 I mentioned.