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Author
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Topic: Headers vent
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Fastback68
Gearhead Posts: 874
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 11-23-2001 09:57 AM
   
I just want to pass on a bit of hard-earned wisdom. If you've never fitted headers before, and if you're going with Doug Thorley Tri-Y's with a 68/C4 combination, prepare for hell! Having done it once, I could probably cut the time required in half, but even so, I wouldn't recommend it to anyone. Headers????? The only reason I'll have 'em is 'cos I've spent the best part of a day fitting them and I'm not about to take them off again! This is the first and last time! Sheesh!!!
Thanks for listening 
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mellowyellow
Gearhead Posts: 4608
From: So. Fl.
Registered: Aug 2000
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posted 11-23-2001 11:06 AM
The original tri-Y's were made for 6566 Shelbys w/o ps. Did you have to make a dimple where they hit? Have yet to put them in a 67-8 with P/S but they do require some fitting on driver side. Remember a buddy spending a couple hours of curse time! They're worth it. I have one of those P/S drop brakets and am going to add some strength to it. I saw one of those break.
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Moneymaker
Administrator Posts: 13182
From: Lyons, IL, USA
Registered: May 99
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posted 11-23-2001 12:48 PM
Yes Pete, the Header manufacturers supplied P/S drop bracket is definatly very weak and needs to be reinforced.
Also there is nothing but nothing that will increase performance on a stock 289-302 like a set of headers, so FB68 all of your efforts were well worth the time. ------------------
Alex Denysenko
Co-Administrator and Moderator
NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00 & '01
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link
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mustangs68
Moderator Posts: 14326
From: Hampton,Virginia,USA 1968 Fastback & 1995 Vert MCA#39406 M&M #12
Registered: May 99
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posted 11-23-2001 02:37 PM
I put a set of Doug Thorley on a '69 351W MachI and I swear I'm going to hell for all the cussing I done when installing..thats was 1970 too we just put a set of Hedmans on Jasons 289 '67 Coupe and it was a breeze,sweet and ez.
sam
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Fastback68
Gearhead Posts: 874
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 11-23-2001 09:00 PM
These are the new Thorley Tri-Y's -- nothing like the old ones. And yeah, I've got PS 
Here's my chief tip. The salesman told me fitting them would be a breeze. OK, scrub that! Then the instructions say that for some applications, you may need to lift the engine slightly. Well, my application was definitely in that category. BUT the engine doesn't need to be raised "slightly". Get the fattest block of wood you can find and raise that engine as high as you can!!!
This morning I'm reviewing the mess ... gasket sealant everywhere!
Sighmon
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