383ss Posted January 28, 2005 Author Report Share Posted January 28, 2005 that's kinda like the response I got... For your application we made part number 309 but is a short style header.The 310Y is a long tube tri-Y but has EGR on the pass side witch you would have to block off. I emailed him back asking if the 310Y would fit or not Link to comment Share on other sites More sharing options...
.justin. Posted January 28, 2005 Report Share Posted January 28, 2005 that's kinda like the response I got... For your application we made part number 309 but is a short style header.The 310Y is a long tube tri-Y but has EGR on the pass side witch you would have to block off. I emailed him back asking if the 310Y would fit or not <{POST_SNAPBACK}> I'm thinking of getting it and trying it in a few weeks. One thing I've read on another board is that the angle of the Y-pipe is different with the 6.0L than the 4.8/5.3L... but I don't know how big of a deal that will be since it has to be welded up anyway How would you go about blocking the EGR? Weld the tube shut? Link to comment Share on other sites More sharing options...
383ss Posted January 28, 2005 Author Report Share Posted January 28, 2005 just get a block off plate and some high temp silicon. Link to comment Share on other sites More sharing options...
CoolBlueSS Posted January 28, 2005 Report Share Posted January 28, 2005 that's kinda like the response I got... For your application we made part number 309 but is a short style header.The 310Y is a long tube tri-Y but has EGR on the pass side witch you would have to block off. I emailed him back asking if the 310Y would fit or not <{POST_SNAPBACK}> I'm thinking of getting it and trying it in a few weeks. One thing I've read on another board is that the angle of the Y-pipe is different with the 6.0L than the 4.8/5.3L... but I don't know how big of a deal that will be since it has to be welded up anyway How would you go about blocking the EGR? Weld the tube shut? <{POST_SNAPBACK}> Either that or see if someone makes a block off plate. I don't think there would be an issue with the Y pipe since, like you said, it has to be welded. Link to comment Share on other sites More sharing options...
383ss Posted January 28, 2005 Author Report Share Posted January 28, 2005 lots of people make block off plates, wouldn't be a problem at all. Link to comment Share on other sites More sharing options...
misterp Posted January 28, 2005 Report Share Posted January 28, 2005 I know the Tri-Y desing has been around for years with great success, and so has Doug Thorley Headers. I'm curious about them, too. I want headers for mine, and was looking at Togs, but they are kind of pricey, also. MisterP, I know what you mean about the old Pontiacs. I have a 70 GTO, and the pass side header was the lowest point on the car. The drivers side was the second lowest. Had to take speed bumps reeeeeeaaaaaal slow. <{POST_SNAPBACK}> Speed bumps suck for sure, but I hammered mine by catching too much air on CA gold country back roads (think amateur night Dukes of Hazzard)! The Hooker Super Comps are really bad for ground clearance, not only did the bottom tubes get mashed flat, all four tubes got bent rearwards (towards the firewall) so far I could not get the oil filter off, the #8 tube was mashed-up against the filter body! So, the Thorley's and a set of H-O Racing springs fixed the high-speed bottoming out problems! ...I think I need to get another old beater Firebird! Mr. P. Link to comment Share on other sites More sharing options...
CoolBlueSS Posted January 28, 2005 Report Share Posted January 28, 2005 I know the Tri-Y desing has been around for years with great success, and so has Doug Thorley Headers. I'm curious about them, too. I want headers for mine, and was looking at Togs, but they are kind of pricey, also. MisterP, I know what you mean about the old Pontiacs. I have a 70 GTO, and the pass side header was the lowest point on the car. The drivers side was the second lowest. Had to take speed bumps reeeeeeaaaaaal slow. <{POST_SNAPBACK}> Speed bumps suck for sure, but I hammered mine by catching too much air on CA gold country back roads (think amateur night Dukes of Hazzard)! The Hooker Super Comps are really bad for ground clearance, not only did the bottom tubes get mashed flat, all four tubes got bent rearwards (towards the firewall) so far I could not get the oil filter off, the #8 tube was mashed-up against the filter body! So, the Thorley's and a set of H-O Racing springs fixed the high-speed bottoming out problems! ...I think I need to get another old beater Firebird! Mr. P. <{POST_SNAPBACK}> I had Hooker Supercomps on mine, too. Mine weren't quite that bad. The pass side exhaust pipe flange had one of the bolts pionting down. (the three bolt one) So, I had leak issues with that side. I guess that's what you get for $100 a pair. Link to comment Share on other sites More sharing options...
vtodd82 Posted January 30, 2005 Report Share Posted January 30, 2005 oh how i wish they would make a long tube for that same price. Link to comment Share on other sites More sharing options...
misterp Posted January 30, 2005 Report Share Posted January 30, 2005 I know the Tri-Y desing has been around for years with great success, and so has Doug Thorley Headers. I'm curious about them, too. I want headers for mine, and was looking at Togs, but they are kind of pricey, also. MisterP, I know what you mean about the old Pontiacs. I have a 70 GTO, and the pass side header was the lowest point on the car. The drivers side was the second lowest. Had to take speed bumps reeeeeeaaaaaal slow. <{POST_SNAPBACK}> Speed bumps suck for sure, but I hammered mine by catching too much air on CA gold country back roads (think amateur night Dukes of Hazzard)! The Hooker Super Comps are really bad for ground clearance, not only did the bottom tubes get mashed flat, all four tubes got bent rearwards (towards the firewall) so far I could not get the oil filter off, the #8 tube was mashed-up against the filter body! So, the Thorley's and a set of H-O Racing springs fixed the high-speed bottoming out problems! ...I think I need to get another old beater Firebird! Mr. P. <{POST_SNAPBACK}> I had Hooker Supercomps on mine, too. Mine weren't quite that bad. The pass side exhaust pipe flange had one of the bolts pionting down. (the three bolt one) So, I had leak issues with that side. I guess that's what you get for $100 a pair. <{POST_SNAPBACK}> Hope to meet you and share more Pontiac bs at the next North Texas area GTG. Mr. P. Link to comment Share on other sites More sharing options...
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