Engine Expertise!

dkhl

New Member
Aug 22, 2004
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I asked a while back for help, and a few people did but I never got a response from them :P... if someone would care to spare a few minutes to offer some suggestions, that would be nice.

My situation is that I'm probably going to end up building the 347 stroker out of a new block, which will let me work on my new '92 Mustang GT (yay for me) lol. and drive it around while I build the block on the side. As some of you know, I don't mind putting in the $$$, and partially because I need to prove to my uncle (whos got a '67 stang w/ a 351) and my friend (whos got a 350 sb trans am] that I can own them heh. This car will NOT be a daily driver, pretty much weekend only vehicle.

The only concern I have is the exhaust on this vehicle, the only restriction I'd like to have is having cats, other than that I have ways of tuning up the emissions.

The motor is going to be on a brand new block as I've said, and it will not have force induction.. initially. I will add that later on in the form of a supercharge or turbo, whichever I like better. I do plan on going on a custom camshaft, stroker kit (forged crank, pistons, rods, etc), and obviously bore/stroke it to 347. The setup looks somewhat like this:

Block: Aftermarket Dart or Sportsman Block
Heads: AFR 205's (I was told 225's are pointless, unless I'm wrong).
Intake Manifold: Edelbrock, Holley, Trickflow (not sure which)
Camshaft: FTI more than likely
Fuel Injector: What size would be good?
Fuel Pump: 255 lph?
MAF: What size?
Headers: Long Tube probably (Not sure yet, does Bassani make headers?)

Unless I'm mistaken, these are probably the most major components for building the 347 I think. I'm probably missing something however.
 
185s seem to be better street heads for a stroker, but 205s may be better if your willing to sacrifice some bottom end to get all the HP you can. The head guy at VMF has 185s on the 331 in his Shelby and its a streetable motor that makes 400fwhp NA, and he has dyno charts to prove it. The torque curve shown on the dyno is insane, I can only imagine how it would respond to a blower.
For injectors, assuming 400-450hp and NA, 30lb/hr come out to be about right.
HTH
--Kyle
 
parts

30lb injectors c&l 80mm mass air 70 or 75 mm throttle body 255 pump trickflow trackheat intake if its an auto afr 205s with a higher stall converter depending on cam spec id say 3 to 3500 rear 373 or 410 make sure u get a good balancer 14 degree advance in timing if ur on motor no power adder and also if ur just gonna use spray no super or turbo charger try getting ur compression to about 10.5
 
Pro-M Maf's (80mm), 1 3/4in longtubes (any brand really)..., 36lb injectors (calibrated), 255lph fuel pump, AFR 185's or 205's, FTI custom cam, and lots of timing...70 or 75mm TB...Holley Systemax intake...

Good Luck
 
Since you are starting from scratch, replacing everything, then why are your building a 347? It won't cost much more to build a 408, and the 408 would make considerably more power.