I dont think a 347 that makes 400 will pass either. You can have one or the other but not both. Most of us that have all this schtuff done to our cars have removed most of that...I dont think a 347 with cats and smog pump and egr is gonna make 400 HP..
Maybe this thread will help. Read the reply from Mark O'Neal, about the 347 he built for his son's car. (Mark O'Neal is the owner of CHP...) Hardcore50
That is an interesting thread. I think I am going to call CHP and just see what they have to say. I'm just going to tell them I want 400+ at the wheels with a short block that can handle it as a daily driver and pass emissions. I'll see what they recommend me using.
That is an interesting thread. I think I am going to call CHP and just see what they have to say. I'm just going to tell them I want 400+ at the wheels with a short block that can handle it as a daily driver and pass emissions. I'll see what they recommend me using.
Im telling you now...youre not going to get 400 to the wheels with emissions in a N/A 347....Now, that doesnt mean you cant have a NICE car, but like you said, call CHP and see what happens....If you can do it, you will give a lot of us hope.
Let us know...I got an estimate from them once, and they were really helpful.
RC
My guess is they;ll tell you to build a 347 with a steel crank, low compression, and add a supercharger.
That, or buy theier 347E add some heads and you'll be about 380....
Also, I was just looknig at thier prices for teh Dynotec Long Blocks. 7000.00 for a 331 longblock setup to handle 6 psi of boost and make 520 hp. This better be an aftermarket block. I know you can get a World Products longblock with their new block and all forged rotating assembly for about 6000....
The 347 is only one option. Those dynotec combos are what have me wondering. what if the 520hp blown 331 and a 460hp N/A 306 are built in stock blocks? If they are not, i guess I have to spend a lillte more money than I planed.