454 performance setup idea - Third Generation F-Body Message Boards

RAPIDFIRE · 08-03-2009, 01:07 AM

i was playing around with desktop dyno and came up with a setup i like and was wondering what everbody thought of it

block 454 (bore...4.280) stock

crankshafts steel (stroke...4.000)stock

rod eagle h-beam (length...6.385)

Keith Black Forged Pistons -18.00cc dome height 0.190 in.(dome single valve relief)

comp cams xtreme Camshaft, Mechanical Roller Tappet, Advertised Duration 274/280, Lift .639/.646 operating rpm range 2,200-6,200

Lifters, Mechanical Roller, Vertical Link Bar
Rocker Arms, Stud Mount, Full Roller, Stainless Steel, 1.7 Ratio
Block Protector, Steel, Roller-cam button spacers
timing cover stock

heads 781 valve 2.19/1.88

Intake Manifold, Performer RPM Air Gap or
Intake Manifold, Torker II

carburetor 750 cfm Secondary TypeMechanical

also deos anyone have a sugestion for a good engine rebuild/refesh kit

RAPIDFIRE · 08-03-2009, 01:11 AM

I want 400 or 500 hp strip/street

Atilla the Fun · 08-03-2009, 05:28 PM

you could, or you could do this:
4.310" bore
4.250" stroke
6.135" rods
flat top pistons
Patriot Freedom heads
regular unleaded gas
the cam you selected
Edelbrock Performer RPM AirGap
Demon 850 or Holley 870 carb
That'll get you over 500 hp, and close to 600 ft-lbs, for about the same money. It'll be way more driveable, too.

Shadow Z · 08-03-2009, 05:32 PM

400 to 500 horsepower isn't too much of a big deal for that size engine. With fully forged internals, pistons to crankshaft, and 11:1-12:1 compression it can be accomplished with a 454 small block. I'd definitely go with the 454 small block instead of the big block since it'd be a street/strip application. It'll save you a little bit of weight, and have a bit more of an RPM range.

Atilla the Fun · 08-03-2009, 05:34 PM

you don't need forged anything nor domed pistond nor a cam that large to get 500 horses from a 454 on pump gas.

Shadow Z · 08-03-2009, 05:38 PM

Quote:

Originally Posted by Atilla the Fun

you don't need forged anything nor domed pistond nor a cam that large to get 500 horses from a 454 on pump gas.

Only reason I mentioned forged internals is because he mentioned street strip. It's common sense that forged would be a very good investment, if you're going to bother with a build like that anyway. I'd much rather do it right the first time, depends on his opinion though, or if it's a budget build.

RAPIDFIRE · 08-04-2009, 12:11 AM

I use 93 octane

cam...have you been having any problems?

cam..what are some pros and cons?

Atilla the Fun · 08-04-2009, 11:33 AM

cam? -cons? The only con of solid rollers, these days, is the initial cost, primarily of the COMP Endure-X lifters ( all others have higher failure rates in street drivers) stiff pushrods, poly locks, et cetera. The cam you propose is fine for street driving.