Camaro Engine Dyno Results

Introduction
The purpose of this page is to generate relatively accurate computer models of the various V8 engines as used in the Camaro. From there, we can simulate changing components and get an idea of what the engine should be capable of doing.

To make the baseline as accurate as possible, the baseline model should closely resemble actual factory results.

The software used in determining these models is Desktop Dyno V2.5 by Motion Software: In order for you to manipulate the downloaded model, you will need this software. As of the moment, I probably won't have the time to model individual requests for stuff. This software is generally accurate to within +/- 5%.

Below, are some selected V8 engines which represent a wide variety of engines as used in the Camaro. Select the engine that closely resembles what you're looking to model. From there, you will be placed to the engine detail, and can see the specific components that make up the engine in question. This file will be "the gospel" of engine stats. During the creation of this page I noticed a lot of discrepancies among some of my other pages (including Z28 specific engine Data, and Chevrolet Engine Information), and other information sources. I've done my best effort to make this page accurate. The other pages may or may not be accurate, however, this file can be used to "wrap up" the engine information. L48 or L82?

For performance related info, click here. For general small block engine component info, click here.

Engines: (all ratings are SAE net)

LT1 - 350 cubic inch, 4.00 bore x 3.48 stroke
Compression Ratio: 9.0:1, comes from 5.7" rod, piston type:
Cylinder head: Castings: 3927186, 3947041
63.305 cc, 2.02 intake/1.6 exhaust.
Camshaft specs: Mechanical type, casting 3972182
Lift @ .5 = .459"/.485"
Duration @ .5 = 242/254
116 LSA

Induction: One 780 CFM 4 barrel holley carburetor. Aluminum dual-plane intake manifold.
Exhaust: Cast iron exhaust manifolds. 2" outlets.

Click here to view a simulated dyno pull
Click here to Download Baseline Model data

L82 - 350 cubic inch, 4.00 bore x 3.48 stroke
Compression Ratio: 9.0:1, comes from 5.7" rod, piston type:
Cylinder head: Castings: 3927186, 3947041
63.305 cc, 2.02 intake/1.6 exhaust.
Camshaft specs: Hydraulic type, casting 3896962
Duration @ .5 = 222/222
Lift @ .5 = .450"/.460"
114 LSA

Induction: One 4 barrel Rochester carburetor. Cast iron dual-plane intake manifold.
Exhaust: Cast iron exhaust manifolds. 2" outlets.

Click here to view a simulated dyno pull
Click here to Download Baseline Model data

LM1 - 350 cubic inch, 4.00 bore x 3.48 stroke
Compression Ratio: 8.5:1, comes from 5.7" rod, piston type:
Cylinder head: Castings: 333882
76cc 1.94" intake/ 1.5" exhaust
Camshaft specs: Hydraulic
Lift @ .5 =
Duration @ .5 =
116 LSA

Induction: One 4 barrel Rochester carburetor. Cast Iron dual-plane intake manifold.
Exhaust: Cast iron exhaust manifolds. 2" outlets.

Click here to view a simulated dyno pull
Click here to Download Baseline Model data

Sheet cylinder heads are:
1968-73 3927185 307,350 1.72 1.5 72cc
Mid 70's 367450 262,305 1.72 1.3 62cc
1970-80 333882 350,400 1.94 1.5 76cc

Specs for typically added stuff:
Typical Headers:
Comp Cams, 280 Magnum.
Edelbrock Performer
Edelbrock Performer RPM.

Summary/Recap/Patterns & Trends
You can see the results of the stock engine. By changing things around, you should be able to get an idea of what the proposed modification would do. Build an engine to work where you want it to.
If your engine makes 100 ft/lbs of torque at 2000 rpm but 500 hp at 8650 rpm, you will be upset.