I recently picked up a used superram plenum/runners and edelbrock hi-flo intake for a very nice price. Bought it online. Anyways i got it and it's missing bolts, the runner bolts, top to the plenum and bottom to the manifold. I know my original tpi bolts will work on the bottom of the runners but the top ones look pretty fricken special to me, i've only got about 3 of the runner to plenum bolts and accel says there is no part # for the bolts themselves so they can't really sell them to me. What can i do? What size are these things and has anyone used anything besides the accel bolts for this, i'd really hate to see this investment go down the drain because of a few fricken bolts.

I believe they are 6/8 metric bolts but i'm not 100% sure, i dunno where to get these from :/

 

Sounds like Accel pullin' your leg. They have got part numbers for everything. They're just pissed because you did not buy new from them. Anyway, if you have one of the original bolts, go to an industrial supply center and have them match it up. Any good supply center should be able to get it. Or at least something that gets pretty close.

I would stay away from those "home improvement" centers. The selection they have is limited at best.

 

As a machinist,I can tell you that they are 5/16-24 thread and 1/2" long.Go to Mcmaster Carr on the internet, they have various styles.I bought stainless steel allen head bolts for my SuperRam.

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92 GTA(only 226 made)ort matched sportsman heads with 2.05 valves,64 cc,milled .015,.028 head gaskets,port matched Accel runners,port matched plenum,port matched edelbrock intake,flow matched injectors,jet hot headers and 2.5" mandrel bent exhaust,Flowmaster muffler,underdrive pulleys,slp cam,1.6 rockers,slp cold air induction,52mm throttlebody,performance resource custom chip,Dyna module,Screamin Demon coil,Accel 8.8 wires,Bosch platinum plugs,timing at 10 degrees,tb bypass,relocated map sensor,shift kit,Fairbanks billet servo,pump vane kit & 2400 stall,Torque converter lockup switch,3.42 posi with welded axle tubes,Zexel Torsen HD diff.,Summit rearend girdle,solid pinion spacer,& alloy axles.Boxed panhard bar,lakewood lca's & edelbrock strut tower brace,Jeg's torque arm,Jegs welded in subframe connecters.Performance friction pads,turbo slotted front rotors,stainless braid brake lines.Roh ZT 17x8.5 front wheels with 255/40ZR/17 tires. 17x9.5 rear wheels with 275/40ZR/17's on the street.Hoosier 26x9.5 slicks on the strip.

 

kwikgta, you just saved me a load of trouble, my work has an accnt with mcmaster, they'll have me new bolts by friday, thank's a million.

while i'm at it, i might as well get new bottom bolts too so i can sell my old tpi setup complete and not salvage bolts from it, kwikgta do you know the size of these as well, this way i'll get the same style/color bolts as the top bolts, i really don't feel like ordering tpi runner bolts from gm (shudder). Thanks again.

[This message has been edited by noam (edited January 10, 2001).]

 

Whoops,I told you wrong.The plenum lid bolts are 1/4 28 by 1/2" long.The runner to SuperRam plenum bolts are 1/4 28 also.

 

thanks again, heh i almost ordered them today from mcmaster, close one, do you know what the bolts are for the runner to manifold, i'm pretty sure they are the same as the stock runner to manifold bolts but i wanna get all the same style ones.

 

I am trying to remember,but I believe they are 8mm x 1.5 pitch(99% sure).I am not sure about the lengths though.When I got home last night I double checked the other bolts and they are 1/4 28.

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92 GTA(only 226 made)ort matched sportsman heads with 2.05 valves,64 cc,milled .015,.028 head gaskets,port matched Accel runners,port matched plenum,port matched edelbrock intake,flow matched injectors,jet hot headers and 2.5" mandrel bent exhaust,Flowmaster muffler,underdrive pulleys,slp cam,1.6 rockers,slp cold air induction,52mm throttlebody,performance resource custom chip,Dyna module,Screamin Demon coil,Accel 8.8 wires,Bosch platinum plugs,timing at 10 degrees,tb bypass,relocated map sensor,shift kit,Fairbanks billet servo,pump vane kit & 2400 stall,Torque converter lockup switch,3.42 posi with welded axle tubes,Zexel Torsen HD diff.,Summit rearend girdle,solid pinion spacer,& alloy axles.Boxed panhard bar,lakewood lca's & edelbrock strut tower brace,Jeg's torque arm,Jegs welded in subframe connecters.Performance friction pads,turbo slotted front rotors,stainless braid brake lines.Roh ZT 17x8.5 front wheels with 255/40ZR/17 tires. 17x9.5 rear wheels with 275/40ZR/17's on the street.Hoosier 26x9.5 slicks on the strip.