I have SLP 1 3/4" headers and didnt buy the install kit. I cant seem to tighten the bolts with a socket because the lip of the headers is too darn close to the bolt. With a wrench I half to go 1 1/4" turn flip the wrench and go 1/4" over and over taking 2 hours for some of the rear bolts. Locking header bolts do not fit (I know I bought a set) so what did you do?

 

Ok let's see how I can help here. I used the Stage 8 locking bolts on my SLP's on my new motor. What you have to do is grind down the two locking pieces for each bolt. Also the Stage 8's have holes in them for allen wrenches which made it a lot easier. When I had normal bolts and had trouble tightening them I bought a cheap open end wrench and ground down the boxed ends wall as thin as I needed to get the clearance.

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Riccioli Performance Motorworks

--RPM Racing--

Getting there.....383 with Super Ram, Bosch 24# SVO's, MSD, Edelbrock 58 mm TB, 700R4 tranny, Eibach springs, Koni 12 way adjustable shocks and struts, and more!! Now let's pray it runs when it's all back together!!!!

 

I have the same problem.

I bought locking bolts, but they could not be used for every bolts (length problem I believe). The ones that arent locking keep untorquing themselves and need to be tightened.

I tried to tighten the one on the passenger side yesterday with a socket, but the socket would not go on it becuase the "lip of the header" is right on top of the bolt.

I don't think I'm having a problem with that bolt leaking though. I seem to be having leaking problems from the bolts on the "Y-pipe" underneath the car just before the cats.

I was able to tighten one side of the Y-pipe but the other side was hard as hell to get to from underneath a partially jacked car. Guess I'll have to try again or take it somewhere that has a lift - they can do it in 2 seconds.

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1989 Chevrolet Camaro IROC-Z
L98 - 350c.i. TPI, rebuilt 700R4 auto w/shift kit, Dual catalyst Monza PaceSetter Cat-Back, SLP 1 5/8 Coated Headers, 3.23 Posi rear, Hypertech chip with 160stat, MSD 6A, Under-Drive pulleys, AFPR, K&N's, !Air Box w/ Ram Air, moddified MAF, !TB Coolant, Spohn Dual Cat SubFrame Connectors, Alarm, Keyless entry, remote starter, 92 Z28 AeroWing, Brand New Paint (6/21/01)

Future: ZZ4 TPI w/EGR, T56, 3.42 or 3.73, Spohn strut tower brace and LCA's

1989 Chevrolet Celebrity Eurosport
2.8 MPFI, no mods
225,000 miles and still ticking!

More info and pics on my webpage:http://go.to/iroc-z

AOL IMer: GPA 0point0

 

I used the slp bolts, I found a spare boxed end wrench, grinded the head down a little. Works like a champ!

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1988 L98
Vette Heads/no EGR
SLP Headers/Y-Pipe
ARAP bin