my 91 firebird came with a 3.1 v6 and now needs a new motor my options are buy another 3.1 buy a 3.8 or use the 305 sitting in my garage. either v6 should pass emissions right? what about the v8?
2007-02-14 10:02:39 · 4 answers · asked by David O 1 in Cars & Transportation ➔ Car Makes ➔ Other - Car Makes
ps the 305 came from an eighty sumthing caprice
2007-02-14 10:03:31 · update #1
Here is all the information you could ever need about your car:
www.thirdgen.org
2007-02-14 10:47:54 · answer #1 · answered by jmortiz_22 2 · 1⤊ 0⤋
Get a whole, wrecked '91 Camaro or Firebird with the 305 or 350 TPI engine and the same type of tranny (manual vs auto). Swap EVERYTHING engine related - engine+tranny, computer, wiring harnesses, radiator, vapor canister, cats and exhaust system, and all the smog controls. And fuel tank/fuel pump. Fuel lines if yours don't fit. If in doubt, swap it. Everything should just bolt and plug in.
You now have a 350 TPI Firebird that's madman fast!!! And 100% smog legal, even in California.
If you use a '90 or older engine, it won't pass smog in a tough smog control state because you can't put an older engine system in a newer chassis.
If you use a '91 engine, no problem.
If you use a '92 engine, you might need to take it to a smog referee for a one-time inspection and sign-off.
Don't use a '93 or newer engine, it won't fit :(
2007-02-14 21:32:38 · answer #2 · answered by Wolf Harper 6 · 0⤊ 0⤋
the 305 won't without new headers gaskets...exhaust...do a crate motor from GM...
2007-02-14 18:05:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋
move to IL. we dont test anything older than 10
2007-02-19 03:31:51 · answer #4 · answered by jw 2 · 0⤊ 0⤋