2.8 (code 9) 60 degree V-6 to 3.2 (code HO-9) 60 degree V-6 Conversion


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Ok, here are some of the pictures of the process. I have completed the entire project as of 12/98 but I have some more tweaking I need to do and more pics to develop.

It is hard to believe the engine was this dirty. From the top it looks clean.

You can never clean a newly machined block enough. I scrubbed this block 8-times and hosed it down with the pressure washer every time. That may be extreme. I am sure at least 3-4 good washes with the hose would work fine.

"The dished pistons will lower your compression...." I cannot say this is true. Look at the pic of the piston to deck clearance!

Here is a pic of the short block minus the cam and lifters.

Scrubbed and painted engine chassis. This was a dirty process but it looks great now and the basecoat/clearcoat combination helps keep the assembly from rusting.

Crane CompuCam being installed. This is the 254122 CompuCam. The specs are listed on the Crane Website.

To take the mystery out of the cam, I degreed it to verify Crane's grind. If you are going to degree a cam, check out the Crane Website.

I decided to cc the heads and the block. I am still trying to determine if the measurment was correct.

cc Heads cc Block

The long block is assembeled. Other than trimming the purple colored water pump gaskets, the engine is looking pretty good. The water pump gasket is a blue Fel-Pro with a red colored cement hence the purple hue. Note the stamped steel rockers. These are Speed Pro 1.5 rockers. I went with the steel stamped for longevity reasons. They have no bearings to wear and they are very durable. The roller tipped rocker did not impress me because the benifit of rollers do not out weigh the risks for my rebuild.

Here are some pics of the engine on the stand. Note the manifolds are not installed but you can just see the new stainless polished manifold bolts. I would highly recommend replacing the stock manifold bolts with stainless. I paid less the $8.00us for the stainless hardware at the local industrial hardware shop.

The engine is complete (is anything automotive hobby ever complete?). Other than some valve adjustment, it runs great. It has a little more valve train noise than what I am use to but I atribute this to the 107lb on the valve seat and the high-lift cam. Here are some pics of the completed engine.

Engine Complete 3

Engine Complete 4

Engine Complete 5

As you can see from the above photos, the manifolds have been Jet-Hot coated. Below are the manifolds before I installed them on the engine. I was very happy with the way the manifolds looked initially but after about and hour of running, the shine has faded.

I drilled out the manifold restrictions with a large drill bit to gain some HP. Also, you can see the Jet-Hot coating is applied to the inside as well as the outside.


You want Sound?

Listen to this engine purr; kinda gives you chills. Not approved for the weak hearted.

The sound of 220 HP?


I have put together a Excel file of all the part numbers, vendors, and prices. Some of the prices may not be what the average person will pay. Somethings I paid less, while other thing I paid a little more. I will not post this Excel file because most people don't care, however, I will list some of the major players.

Some Interesting Parts

3.1 Crank Kit (981 Casting)

AutoZone

10610

Crane CompuCam & Lifters

Summit Racing

254122

3.1 Hyper/Graphite Pistons

Northern Auto

H562CP 0.050mm

Adjustable Fuel Pressure Regulator

Summit Racing

74750

GM Performance Harmonic Balancer

CN Pontiac

14085401

Crane Cams Valve springs

Summit Racing

99849

Stainless Steel 1-Piece Valve

SI Industries

?

ARP Rod Bolts

Summit Racing

133-6002

Brass Frost Plug Set

NAPA

219-9524

3.1 Crank Woodruff Key

CN Pontiac

14089209

This is just a few of the parts I have found to be either hard-to-find or special to the project. Of course, there were many many more parts involved and I would be happy to help with part numbers.


More to Come