Quote:
Originally Posted by Va68goat
*snip* Can you identify what kind of rockers these are? I know the guy that I bought the car from had some good parts but a lot of his stuff was done half ass. I attached a picture where you can see that I have good spacing to the brake booster....I think!
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Those rockers are interesting, because they are die cast aluminum. I have not seen a set of those in person, or for sale from the popular Pontiac vendors. I imagine the were very cost effective and very light. The advantage would be reduced reciprocating weight. Downside is they are not as strong as more popular aluminum rockers.
Most of the aluminum body rockers (like Harland Sharp, Comp Gold, etc) are die extruded, CNC machined and then anodized. The die extruded rockers are going to be stronger than a cast aluminum rocker. There are differences in both the aluminum alloy and the grain structure of the extruded part, that will make it able to handle more spring pressure than a cast rocker, without failure.
The Crower steel enduros are even stronger than an extruded rocker, so it's a solid upgrade for your application. Compare the weight of the cast aluminum rocker to the Crower, you'll be surprised.
http://www.enginebuildermag.com/2012...rm-technology/