head probs

shttygtstang

shttygtstang

New Member
Jun 2, 2004
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#1
ok i got my heads from ebay .they are edelbrock performers witha casting # 6025 the guy said they were for a 289 ,302,351 the valves were supposed to be 1.9 and 1.6 if you look on there site then youll see there 2.02 and wut ever.but they also have the cross over tube on them for emissions

thats not my prob my rr's dont fit.the hole is smaller for the bolt i took a head stud and put it in the holes for the rr's are 7/16 i was stumped so then i took a stud and ran it through the head hole and to my surprise its way to big almost like a half inch is that the way they come som you can either put them on you 351 0r 302 some one help me figuer out here are some links

http://edelbrock.com/automotive/index.html

http://cgi.ebay.com/ebaymotors/ws/e...&rd=1&item=7910919668&ssPageName=STRK:MEWN:IT
 
#2
You need to buy the head studs made for the E-brock heads that come with the adapter washers, this way you can still run the 7/16" stud which the 302 has. ARP PT#235-4018 if I remember correctly.

Now as far as the rockers you may have a 3/8" rocker, but the heads may have 7/16" rocker studs...you need to buy new rockers, Scorpions are very nice and well worth the $200.

Take a pairs of calipers and measure the intake valves to see if they are 2.02 or 1.90, the ebay ad says 1.90
 
#3
rick so by the time im done with you will i be buying you a new house lol

ok heres wut i figuered out i need head bolt bushings pn 9680

please explain the rr to me the ad says there ment for the stockers

my micrometer is at my buddys house were the cars being built i hope they are 2.02s
 
#4
Measure the rocker studs, you can use a ruler...the studs may have been swapped out for larger units they originally came with 3/8" (stock size from E-brock)...

If your stock rocker doesn't fit over the stud they are most likelt 7/16" studs
 
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