TJ's Performance

 

 

 

 

 

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Welcome to Big Block Chevy Build Up.

This is my project Nordic Jet Boat. It was built in 1977. Nordic boats is still in business today. This hull is pretty solid and has full stringers all the way from the transom up the the bulk-head in the front. I am building a 454 Chevy for it that came out of a 1970 Chevelle with an LS-6 Engine. It is an "HP" 4 bolt main block with forged crank and square port closed chamber heads.

 

This is the HP 454 virgin block. I deburred the oil drain backs and also removed and smoothed the casting flash. Stay tuned for full build up soon. These are the 6.135 Eagle Forged H-beam rods that I will be using. They will be swung by a Chevy Factory Forged Crank, cross-drilled and nitrided.

 

 

These are the Rect. port heads that are fresh from the machine shop. The chambers have be unshrouded and larger exhaust valves installed. Hardened seats and new guides were also installed. Ports are nice size with no porting.

 

 

My cell phone fits in the intake ports. Just another shot of the nice machine work. The machine shop I used is called E & G Auto Machine in Wallingford, CT. They are a full service shop that grinds cranks in house and does in house balancing as well. They are top notch.

 

 

More Parts acquired. I got the smooth aluminum valve covers on E-bay. The cam timing set I got at Summit Racing. The springs in the heads match the camshaft as well. Also from Summit Racing is a tool I needed when assembling the Big Block. It is a crank shaft turning socket. I have one for SBC and SBF. They make assembing an engine actually fun.

Fast Forward after Assembly:
I assmebled the complete engine and then prepped it for camshaft break-in. Enter the engine run in stand. I ran a few small block
chevrolets on this stand which was very stable and did not move. I was a little reluctant to strap a big block to the stand but I know when I built this
thing it was really beefy. So here are a couple of pics showing the engine bolted to the run in stand. Also a video of starting and running the engine. Make sure you turn up the sound when the video plays.

 

Here is the big block bolted to the run in stand. Alot of people thought I was crazy cause I have castors on the stand. Well these castors have feet that raise the wheels off the ground. Here is just another shot of the stand and engine. Notice the truck radiator along with an electric fan. I also had to fabricate a an idler pulley bracket so I can run a water pump in order to run it on the stand.

 

Here I am finishing up the wiring and hooking up the battery. Notice the fuel pump and make shift fuel tank. This is the final step before firing. A simple gauge panel I made that has a mechanical oil pressure gauge and a water temp gauge with switches for iginition and fuel pump. Also it had the push button starter as well.

 

Here is the video after I broke in the camshaft. Turn up the volume. Please right click and save as:

BBC Run In Video

 

Site Navigation
Home
Mustang Tech
Fabrication
Chevy Truck
WorkBench
Turkey Rotisserie
Puke Tank Fabrication Big Block Chevy Build Up 8-71 Blower Build Up Page Jet Boat Tech Cheyene Jet Boat Contact  
  Diamond Plow Conversion 99-01 Cobra Intake Fix Headache Rack Build Chevy Frame Crack Fix