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I have had excellent luck and outstanding service from American Powertrain. They helped me out when I smoked the clutch in my land speed car (which was a zoom). Then on the trip home, the clutch in the truck exploded (pioneer). Darn 45mph head winds while pulling a 48 foot inclosed. Gray at...

I'm also a BBC guy along with diesel. I have the 8.1 Vortec in a 78 Firebird. By the it's a street legal land speed car. Almost finished with the intake manifold that I'm making for it. Also will soon be installing twin T4 turbos. http://www.youtube.com/watch?v=YSAOwWw624s

The entire casting number is 10149599. So would this be a 6.2 or 6.5? And if it's a 6.5, is it worth anything?

Is the 599 worth anything? I know of one local that I could pick up real cheap. Already checked the heads, and only one is cracked. I haven't pulled the pan to check the mains yet.

Thanks Mike I will have to check the data plate on mine when I get off work. Is there already a list generated of the more desireable LPs?

I'm gonna through out a question here. For those of us running all mechanical, is the DB2 able to provide enough fuel for an HX40 or HX40II? Of course a FTB kit and Leroy's LP would already be in the equation.

Hey WW, will the new locktight blue tape work? or should it be the liquid?

Brake clean helps clean things up fast and also helps pin point the leak origin.

This is going to sound strange, but I took mine out and matched them up with air conditioning o rings (the green ones). Its been more than a year now and still no leaks. Got them from Advance Auto.

Hey Brandon Mine looked just like that at one time. I took the lines out of the cooler, cleaned everything and replaced the seals. No more leaks.

Thanks Leroy. Gonna be after the first week in November for sure. Got funds squirled away for my trip to SEMA. :drive:

Is there anything else that can be done to the DB2 beyond turning turning the IP screw? Also "open plenum", is that a modified OEM or aftermarket?

Summit has them for $190. Can you get any deals on the +.10 cometic head gaskets?

Anybody got the part # for the ARP studs?

I have my EGT thermocouple at that flange, I can go right next to it. Two boost gauges right? one for boost and the higher limit one for drive pressure? Oh goody more gauges:147:

I am currently installing the HX35W on mine and when done will have ATA and ATW IC's. So my question is How do I measure the drive pressure? I have the boost monitered, EGt is also covered butI'm lost on the drive pressure.

Hey Tanman good eye, but that is with the air bags all the way down. It took about three months to get it fit just right. No bumps, rattles or squeaks. At least from the exhaust. Vanman I've got six V shaped baffles (3 from the to 3 from the bottom). They alternate one up then one down.

Then we take them back towards the axle. The right exit is pretty simple so I didn't photo it. but the other side is a different story. Big turn downs out each side and a full rear shot. Sound good, spools very fast, and low noise in the cab.

Ok so I finally got around to pictures of this 4" exhaust system. Starts as a 3" DP elbow. Then it bells into 4"right at the frame. Under the cab and split to two 4". Then run back to the dual 4"in and out homemade muffler.

If you follow the link I mentioned, you can get the specifications. Basically it adapts standard threads on one end (which will be female)to metric on the other end(male end into the turbo). I'm making my own DP adapter. But then my exhaust is more then a little different. Made my own set up...