Building Chevy 4.3 liter V6 - 1994 with balance shaft
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(→TECH STUFF ABOUT THE 1994 4.3l V6) |
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'''HEADS''' | '''HEADS''' | ||
| − | + | There is a particularity here! GM in the years around 1990 has started to adopt the metric system for some applications. Some threads may be metric. Should you ever come to find a bolt hard to fit check threading. In particular the screw in studs on 1995 and later may be metric M10 x 1.5's from factory. Some ARP aftermarket studs have this threading as well. Heads have stamped rockers, pinched nuts on pressed studs. This will definitively be one of the mods. | |
At the moment I'm trying to figure if the heads correspond to L05 heads of the V8. They already feature the "ski-ramp" swirl ports (vortec) but not yet the kidney shaped combustion chamber. Further study and evidence indicate that I'm right on classing these heads. They do not flow terribly but should do the job. The only figures I came by for the exact casting numbers are low figure at 135 cfm and a higher number at 180 cfm. | At the moment I'm trying to figure if the heads correspond to L05 heads of the V8. They already feature the "ski-ramp" swirl ports (vortec) but not yet the kidney shaped combustion chamber. Further study and evidence indicate that I'm right on classing these heads. They do not flow terribly but should do the job. The only figures I came by for the exact casting numbers are low figure at 135 cfm and a higher number at 180 cfm. | ||
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