Post by nate1977 on Feb 4, 2010 18:46:32 GMT -5
I'm building a 1977 Chevy Stepside 2wd shortbed that is near to my heart. I got a 454 out of a 79 Chevy crew cab dually complete and ready to drop in, if i want. I'm going to tear it down first. I'm on here cuz of two things. 1:The headers I got with it arenot typical headers. They are long full length, but the front 2 exhaust tubes and the rear 2 tubes join toether, and then those two connect at the collector. The outlet is not the typical flat end, 3 bolt collector. Instead, they have a donut and two bolts for the flange. Anybody know what brand they are? I'll have pics available soon. 2: The back of the block by the rear plugs has "High Perf Pass" stamped in it. Have I found a desirable block or is it run of the mill? Any answers will help. Thanks.