http://cgi.ebay.com/ebaymotors/ALUM...233825696QQcmdZViewItem?hash=item330233825696& will these fit my stock '73 302? I am hoping to go with GT40 heads soon. i hlready have headers. Also some kind of new/ used cam when the heads go on. Would these fit in that build?
You might already know this, but you need your heads machined for screw in studs and guide plates. Once you do that, you need hardened pushrods too. So it's more than just buy and bolt on... They also require taller valve covers, or spacers to raise short ones up. That is a good price for rollers, assuming they are of reputable quality. *Those rollers- ~$140 *Studs and plates- $50-100 depending on brand *Valve covers or spacers- $??? *Pushrods- $50-150 depending *Machine work- $??? Was about $100 bux 10 years ago. Figure 2 bills today. *Head gaskets- *Etc, so on... you get the idea.
They wont fit your application unless you go to 7/16ths rocker studs(stock rocker studs are 3/8 Dia.).Your stock rockers are rail guided.(the tips of the rockers have rails on them to keep the rockers centered over the valve stem tips)You will need guide plates/push rods/screw in 7/16ths studs as ratio stated.So no, not on stock heads with no mods to allow them to work properly.
Hmmm, and for some reason they neglect to mention who the manufacturer is. Might be ProComp or some other Chinese knockoff artist whom it's better to stay away from.