Hooker Headers Question
Thread Starter
Burning Brakes
Joined: Nov 2002
Posts: 896
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From: Washington MO
Hooker Headers Question
In the process of putting om my hooker shorties and was wondering, Can I remove the factory driver side manifold from the top?
I should add this is on a 94 LT1 M6
I should add this is on a 94 LT1 M6
Last edited by 94redrag; Jan 27, 2008 at 11:20 AM.
Le Mans Master
Joined: Nov 2006
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From: Greenwood Indiana
2021 C4 of the Year - Modified Finalist
C4 of Year Finalist (appearance mods) 2019
I've also got a set of Hooker shorties going on this spring. Are you changing the rest of the exhaust too? If you leave the stock system on, let us know if it changed the sound or performance any.
Team Owner
Joined: Aug 2005
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From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
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I'm doing the same mod. I already purchased hookers headers and I need to buy longer bolts. I installed Magnaflows SS Mufflers yesterday and I noticed that my resonator needs to be replaced. Now, I need to buy a resonator and go with new pipes from the resonator to my mufflers. Oh yes, the magnaflows are sweeeeeeet. 
By the way, where and which resonator should I buy...?
By the way, where and which resonator should I buy...?
Last edited by PLRX; Jan 28, 2008 at 12:08 AM.
Burning Brakes
Joined: Dec 2005
Posts: 998
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From: Indianapolis IN
I just took my driver side off my 89 and will take the passenger side off soon. I was thinking about going with the hookers as I saw them for 650 new. What bolts did you use and did it hook up to the stock style system? For now the rest is stock, my heads are coming off for new vortex style and I figured I might as well change the headers since I have to move them at this point.
Team Owner
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From: Riverside County Southern California
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Melting Slicks
Joined: May 2004
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From: Lufkin Texas
St. Jude Donor '05-'06
I just took my driver side off my 89 and will take the passenger side off soon. I was thinking about going with the hookers as I saw them for 650 new. What bolts did you use and did it hook up to the stock style system? For now the rest is stock, my heads are coming off for new vortex style and I figured I might as well change the headers since I have to move them at this point.
Racer
Joined: Jul 2004
Posts: 285
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From: San Diego CA
I agree with PLRX - the stock sized bolts (ARP-400-1201) are:
Thread Size: 3/8-16 in.
Head Style: External 12-point
Underhead Length (in): 0.750 in.
Underhead Length (mm): 19mm
but in certain cases the ARP-400-1209 are not long enough. I just used the existing factory bolts in this case otherwise I'd have had to fork over another $xx.xx to get a 1 1/8 or 1 1/4 at most sized ARP bolt.
Thread Size: 3/8-16 in.
Head Style: External 12-point
Underhead Length (in): 1.000 in.
Underhead Length (mm): 25mm
Fastener Material: Stainless steel
Shortie headers (Hookers) 1 3/4 inch diam will be worth about 7RWHP and 13 RWTQ....the Dynojet dont lie........
Thread Size: 3/8-16 in.
Head Style: External 12-point
Underhead Length (in): 0.750 in.
Underhead Length (mm): 19mm
but in certain cases the ARP-400-1209 are not long enough. I just used the existing factory bolts in this case otherwise I'd have had to fork over another $xx.xx to get a 1 1/8 or 1 1/4 at most sized ARP bolt.
Thread Size: 3/8-16 in.
Head Style: External 12-point
Underhead Length (in): 1.000 in.
Underhead Length (mm): 25mm
Fastener Material: Stainless steel
Shortie headers (Hookers) 1 3/4 inch diam will be worth about 7RWHP and 13 RWTQ....the Dynojet dont lie........
Melting Slicks
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From: Daleville Indiana
St. Jude Donor '08
Team Owner
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St. Jude Donor '09 thru '20
I'd like to say thank you for the parts and advice. The headers are installled, I had to remove the catalyst converters, modified the A/C brackets and bolts but other than thoseno problems... I had no alignment issues.
Below are some pictures. Now I'm working on a MSD Pro-Billet distribitor and VBP sports suspension
Below are some pictures. Now I'm working on a MSD Pro-Billet distribitor and VBP sports suspension