Project 68 The Great One

[Roadbuster]

That is one sweet looking motor!

Jon

[Code Red]

That is one sweet looking motor!

Jon

thanks

[Roadbuster]

With those E heads do you need to use RAIV headers?

I thought that is what was required. The thing that puzzles me is the flat bottom of the port and how does that transition to the round header. That is the first shot I have seen of the E head exhaust ports.

Jon

[venturabeachpup]

The rally wheels sure make a big difference! Good job! Awesome car. Bad to the bone motor!

[gearbanger]

You do have to use RAIV (round port) headers with the e-heads. The flat bottom on the ports is like that because it makes the exhaust port flow better. It also creates a sort vortex area just outside the exhaust port that help prevent reversion of exhaust gases that can pollute the intake charge. An old trick for ford 302 boss and 351 C engines was to install port plates in between the heads and headers to create this "D" shape. They say it helped alot on those engines too.

[Code Red]

yup have to use round port

Since I was in Akron this weekend I stopped at Summit Racing and picked up a set of Doug's headers

[BaddestBuick]

Hey that engine is coming along nice! are you going to dyno it?

[Code Red]

Hey that engine is coming along nice! are you going to dyno it?

eventually

[Code Red]

mmmm headers Doug's Headers to be exact. Picked them up at Summit Racing while I was up there this past weekend

[1968CamaroSS_Sam]

Nice looking work on the engine.

[jackfrost]

sweeeeet

[Roadbuster]

You do have to use RAIV (round port) headers with the e-heads. The flat bottom on the ports is like that because it makes the exhaust port flow better. It also creates a sort vortex area just outside the exhaust port that help prevent reversion of exhaust gases that can pollute the intake charge. An old trick for ford 302 boss and 351 C engines was to install port plates in between the heads and headers to create this "D" shape. They say it helped alot on those engines too.

Thanks for the technical explanation! Before I saw the pic of the ports I thought they looked like RAIV ports.

Jon

[Motown 454]

Thats interesting on the Boss motors ,I didn't know that. Engine looks good.
Wayne

[Code Red]

brought the headers by the shop for a test fit and also checked out the new intake manifold

still waiting on the valley pan and crank pulley






old water pump piece



you can see the crack in the pulley



valley pan speaks for itself




455 the shop is building for another customer

[Code Red]

stopped in to check on my brothers 305 block the shop is cleanign up for him and I decided to bring one of my new valve covers in to see how it looks

lets just say I huge a huge boner after seeing it hehe



also the shops Roadrunner with a new Super Charged Hemi they fabbed up their own manifold for the supercharger to sit on.

[Code Red]

grrr

called butler performance yesterday and they are still waiting on the shipment of valley pans to come in

I'm really wanting to bring this engine home

[gearbanger]

On that water pump, you should put the plate against the pump and check the clearance between the impellar and the plate at the center hole. The clearance should be minimized in order to keep the efficiency of the impellar. Alot of times it is 1/8" or more with aftermarket parts and that can be the root of hot running problems with pontiacs. I just wanted to let you know while you have it apart to check it. You may have already known this.

[Code Red]

On that water pump, you should put the plate against the pump and check the clearance between the impellar and the plate at the center hole. The clearance should be minimized in order to keep the efficiency of the impellar. Alot of times it is 1/8" or more with aftermarket parts and that can be the root of hot running problems with pontiacs. I just wanted to let you know while you have it apart to check it. You may have already known this.

thanks I noticed that int he pontiac engine building book today actually but the shop has already assembled the water pump we will see what happens plus I want to switch housings down the road tot he butler performance one like on the 455 I pictured there

[gearbanger]

You should be okay, but if you have hot running problems that is the first place to look. You should check out KREpower.com and look at the timing cover they sell. It looks pretty cool.

[Code Red]

You should be okay, but if you have hot running problems that is the first place to look. You should check out KREpower.com and look at the timing cover they sell. It looks pretty cool.

looks good