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Whats the point? Looking for massive power? Need Cast iron to support tons of boost? Looking for more displacement with boost? Has anyone tested the limits of the cast iron block?

Copper head gaskets are for drag motors and the history books. They do not tend to seal around the oil and water passages, plus the re-torqueing as stated above. Call Cometic and get a head gasket custom made for pretty cheap. They should be able to do any bore size and thickness you need...

I have posted the specs here on the forum before . The 4.3 DP motor could in theory be run on the street, but it would need a heavier flywheel and it could not push around a big ass heavy Lexus, but it would work fine for a street rod or kit car. It is limited to 11.0:1 compression if I...

NO. just because you can feed it more fuel doesn't mean it has any more air to make more power with. No need to get custom fuel rails, stock rails will flow more than enough fuel. Do you know for sure the stock TB is too small?

Mind if I ask why you didn't do a simple bell crank in the middle so that both pairs open in the same direction. Like the old school Weber setups.

But you can run a different injection system with this manifold as well. You put bungs for the injectors and then use a four barrel TB and might make more power on a modified engine.

The EGR system uses inert exhaust gases to cool the intake charge at part throttle. When it is disconnected the timing map that the factory spent thousands of dollars perfecting for all conditions is no longer accurate. The combustion temperatures that the engine was mapped for are much higher...

You need to hook your EGR system back up. It is costing you power and causing combustion temps to be too high, thus causing pre-igntion. Reset the computer and fix your EGR system.

700 should be do able in race trim

A billet crank will not be stronger than a forging. A billet crank will not have the properly aligned grain structure that a forging has. This is one of the reasons a forged crank is stronger, but in a limited production run a billet crank will probably be cheaper. When you shorten the...

You can' use the Stock Lexus trigger wheel bercause it uses a different count off than the 37 tooth wheel of the ford. I had already looked at using the stock wheel until I found this out.

Buy a 944 S2 or a 944 turbo. Those are fast from the factory. A LS1 swap into a 2nd gen RX7 can be pretty quick. You could probably pick up a mid 90s M3 for that kind of money. An MR2 turbo can be had for less than that and with a few tweaks can be quick. You could also look for an AWD DSM...

You do not want your oil temp going over 250F. Although synthetic can take it for longer than dino oil, all oil starts breaking down at those levels.

Contrary to popular opinion flow is very improtant. You have to move air through the motor to make power. The new Z06 heads will flow 360+ CFM out of the box. Straight from Chevy. I have driven one and it is not a dog on the street. You can putter around below 2K all day long and have no...

These are the regs for the Grand Am Lexus engine. This engine is making over 500HP.

Devcon is an epoxy, it is no where near the equivalent as phsycally melting new aluminum into the parent material. In order to reshape the ports enough with Devcon you would have to dam the port up and pour in the Devcon, then you have to deal with it not drying evenly and shrinkage. You are...

Please don't. DO it right and weld the head up and re-port and machine the heads the way you want. Until someone actually builds a true 8K rpm street motor no one has met the potential that these engines have to offer in 4 litre form. These motors should easily make 450 in street trim. If...

You don't need billet cranks, titanium rods, aluminum rods, steel pistons, or any of the above. The Honda s2000 engine turns 9500 with steel rods a forged crank, and cast pistons. Aluminum rods are a waste of money as are titanium rods. I know honda motors turning 10500 with steel rods and...

Although not necessary for most people, That is a nice piece. The real ticket would be to make an dry sump oil pan that integrates that design all the way through it.

Please stay away from Ross. The quality is not there. I would call Wiesco or CP and get them to make you something. They can handle the work and the quality is much better.