im building a motor for my 92 Z28, and i would like too get a rough idea on the hp/Tq it should make, i understand that every motor is different....just a guesstimate...specs as follows


-.30 over 350 4 bolt mains
-high volume oil pump with arp hardned pump shaft
-rotating assembly balanced and blueprinted
-x rods polished with arp hardware
-speedpro forged flat tops w/ 4 valve reliefs yields 10.1 compression with 64cc combustion chambers
-lunati voodoo flat tappet cam 110 lobe 227/233 @.50 with .489 .504 lift
-TFS 195's 64cc combustion chambers, port matched too 1205 gasket
-1.5 RR
-professional products victor jr lookalike port matched too 1205
-Holley 750 DP

it will have a plate kit on it also with 150 jetting.....


I will be running a TH-350 with 32-3500 converter....


any estimates are greatly appreciated.....
-Donnie

 

That part I don't believe. 0.030"-over I'd believe, but not 0.30"-over.

Are you working over the X rods, or buying them already done?

Any particular reason for the single plane intake? If you use it, you'd better up the stall to 4000 RPMs. With the stall you quote, you'd be quicker with an RPM intake.

Should be in the 400 HP range with proper exhaust.

 

350 to 375

 

Did you deck the block? This may sound like a broken record by now, but speed pro pistons are .020" deeper in the hole, if you don't deck the block with a normal .040" head gasket it'll be closer to 9.2:1. If you zero deck it you'll get the 10:1 on the nose - you want that.

That's a nice combo, should get up to 400HP with those aftermarket heads and healthy cam. I ran that one for a short while (be sure you break it in to the letter, EOS and PLENTY of cam-lobe lube)