new build est. hp?

**96z28man** · 03-12-2011, 02:38 PM

94 Z28 block
bored out to 383
probe industries
Chevy 383 Flat Top -4.0cc - SRS Piston Set by Probe

Part Number: 12337
1.125" Compression Height
3.750" Stroke
6.000" Rod Length
0.927" Pin OD
1/16 in. 1/16 in. 1/8 in. Rings

Forged: pistons, crank, and I beam rods
Probe 5140 Machined Beam Connecting Rods - 5.700" Length
its a full stroker kit
LT1 to LT4 Conversion Kit 1994-97 LT1, Kit Includes Cylinder Heads, Hot Cam Kit, w/Rockers, Intake Manifold

plus small stuff like msd opti
hooker super comp mid tube headers
SLP 1 loud mouth cat back

what i wanting to know if what do u guys think my hp will be around thanks

**5.0THIS** · 03-12-2011, 03:07 PM

Just looking at your parts list, you have either the wrong connecting rods or the wrong pistons. If a piston is designed for use with a 6 inch rod, it wont work with a 5.7 inch rod. As for the LT4 kit.. it probably wasnt the best money spent. For about the same cost you can get the LT1 heads ported (which will far outflow stock LT4 heads), and matched camshaft to go with the heads. Nonetheless you're probably looking at 330-360 hp at the rear wheels through a 6 speed manual trans. Alot will depend on how good the pcm tune is. A custom dyno tune by someone who knows what they're doing is always best.

**96z28man** · 03-12-2011, 03:40 PM

ok im going to get the heads ported
what cam should i go with then

**5.0THIS** · 03-13-2011, 01:30 AM

Assuming you take the heads to a reputable person who knows LTx heads, they'll be able to spec out a cam for you to match the flow of the heads and what you want to do with the car.