Do they make "Shorty" headers to fit a '90 L-98?

[72Blazerod]

Does anyone know if they make shorty headers to fit a 1990 L-98? That would make my life much easier. Would '92-97 shorty headers work on a '90 engine?

Rod

 

[echoecho11]

ROD I know that 97's won't fit for shure as 97's use the LS1 engine. The 92 to 96 LT1/4 engines have the same exaust port configuration as the 89 to 91. " D" shaped . I have a 91 L98 and whould like to get a cat back for it and it's not listed in the parts books? 90 down is , 92 up is but not 91...? what I have found up to this point is that the 92 swich to the LT1 also brought on a new ecm ( beleave to be OBDII but have older under dash conector) the new system had a O2 senser before the cat and a O2 senser behind the cat but any muffler shop worth its wight could fix that. one other thing that is a problem is that the EGR valve gets exaust gas from number 8 exaust runner. my 91 runs better with EGR hooked up and working. when I bought the car it whould get a code 32 whenever I ran it on the freeway over 55MPH . when I replased the EGR valve the car had slitely more pick up and got 4MPG better fuel economy. the book said that there is a temp sender in the penulem that sences the heat when the EGR opens an alowes the eignition to advance more. 90 and 91 L98's are the same and have a littel higher compression along with the speed densaty TPI so I'm looking back to a 90 cat back system to see if it will work on my 91. If anyone out there knows I hope they will post back. Hope that I have given some insight for you and good luck with your Vette. ......Echo 1