350 output?

[75gmck25]

I used aluminum Blueprint H8002K heads, which run $899 complete with valvetrain. You can buy new Vortec heads for about $700, but depending on what else you plan to use with it they may need to be modified. I planned to use a roller cam with lift that was borderline too high for stock Vortec, so aluminum heads that were already set up for a roller and higher lift seemed like a better choice.

Going to 64cc chamber heads will get you about 1 point more compression (8.2 up to 9.2?), and I used a thinner head gasket (.026 instead of .039) to get it up to about 9.4.

I have seen the suggestion in the past to try 305 heads, but I would do a thorough internet search for information before trying that route. Some think it works well, while other think its just about the worst choice available.

I am using a cam with duration of 213/217 @ .050, which is a good match for my engine compression and the weight of the truck. I have a TH350 with stock converter, 4.10 gears and 31" tires. You will find many guys who go for max horsepower by using a much higher duration cam, but what you give up is torque/power that comes in a low RPM. You need torque to get the truck moving and make it feel strong. With long tube headers my combination should be good for about 350 HP, but I am still running stock iron manifolds and duals, so i give up about 20-25 HP.

Bruce

 

[fussfeld]

Man, who cares about power. MOre pics, more pics!!!

 

[AuroraGirl]

If you look below the alternator on the block deck surface where the cylinder head meets the block there should be numbers and letters stamped on it. They will tell you when and where it was mfg, the power output and displacement aswell as a partial vin of the vehicle it was put in originally.
This is the code from my 400 SBC. T0413CLK T-Tonawanda, 04-April, 13-13th day, CLK- 400ci, 2bbl, 265hp, turbo 350 transmission
The code to the left 11J182718 is 1-Chevrolet, 1-1971, J-Janesville, 18271- production sequence.

You must be registered for see images attach

yours:

You must be registered for see images attach

mine:

You must be registered for see images attach

Look at how small this ******* world is!!! you havent been on since december but this is cool, looks like I beat you 3,000 ish units earlier produced also at janesville, 2 months( I think) earlier at tonawanda