LS1 into 3rd gen swap, headers problem!
03-25-2009, 04:22 AM
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LS1 into 3rd gen swap, headers problem! Hello,
I have almost finished my LS1 / 4L60 swap into my 1989 Firebird Formula.
Now I am having custom stainless exhaust made and we hit a snag. The right header is different than the left one, it has different exhaust pipe diameter, one has 57 mm and the other 63 mm. Is it normal or have I bought some freaky engine? The engine comes from `98 Camaro.
Also the passenger side header has to small diameter for the exhaust ports in the head and we need to bore it to make it work properly!
I would be grateful for clear information on factory headers for F-car.
Kind regards
Marcin
I have almost finished my LS1 / 4L60 swap into my 1989 Firebird Formula.
Now I am having custom stainless exhaust made and we hit a snag. The right header is different than the left one, it has different exhaust pipe diameter, one has 57 mm and the other 63 mm. Is it normal or have I bought some freaky engine? The engine comes from `98 Camaro.
Also the passenger side header has to small diameter for the exhaust ports in the head and we need to bore it to make it work properly!
I would be grateful for clear information on factory headers for F-car.
Kind regards
Marcin
