2002 chevy impala transmission shrinkit full#

Just want to be sure before I buy a fourth set of headers.already have about $950.00 wasted. How do the spark plugs fit on the 68190's? What cylinder heads do you have? If the car is an automatic, will the headers work on a car with a mechanical clutch linkage? The 3' size is about right, I wouldn't have to use reducers, and J- and U-bends get cheaper. The 1-3/4' primaries are the same.the collectors are 3' on the Hedmans and 3-1/2' on the Hookers.

2002 chevy impala transmission shrinkit full#

The 68190's are full length headers similar to the Hookers I have. I prefer the full length headers, but speed bumps suck. Another reason the Hedmans were rejected was that the primary tubes and collectors were very small for the application: 2-1/4' collectors. The ports on these look like squares with rounded off corners. The Hookers and Doug's were described as 'SAP,' or 'Same As Port.' The SAP headers fit fine. The Hedman catalog says nothing about port shape. They were rejected because they had the wrong port shape: They were round and I have D-shaped ports. The Hedmans that I tried were the shorty 68610's. If the frame dimensions are the same, the engine mounts the same way, and the clutch location are the same, everything should be swell, right? To my knowledge, all of this stuff is the same (correct me if I'm wrong), but the clutch pushrod may have a different boot at the firewall.that doesn't matter. What are the differences between this area on a 1967 compared to a 1968? Re: ATTN: Everyone with a full-size 1967 Big Block What headers are on your cars, how do they fit / what did you have to do to make them fit, any clearance issues. The power steering gearbox, however is the huge Saginaw 800 mounted on the inside of the framerail next to this huge Big Block Chevy engine.Īnyone who has ever put aftermarket headers on one of these big block cars should know which headache I'm talking about. The car has a Muncie M-20 with a mechanical clutch linkage, but the linkage has never caused clearance issues on the driver's side. The passenger's side header has always fit properly (no starter clearance problems). They don't alter the position of the driveline at all. Subject: 4T65E Transmission 1-2 Shift Shudder at Light to Moderate Acceleration (Replace 2nd Clutch Plates and Sealing Rings) Models: 2001-2004 Buick Regal 2001-2005 Buick Century, LeSabre 2002-2007 Buick Rendezvous 2005-2007 Buick Terraza 2005-2008 Buick Allure (Canada Only) 2005-2009 Buick LaCrosse 2006-2011 Buick Lucerne 2001-2005 Chevrolet. My motor/transmission mounts are made by Energy Suspension and are polyurethane. I had to (nearly) completely smash the #7 tube flat to make the header fit next to the gearbox. This third set is made by Doug's Headers in Riverside, CA. I figured since they were $500.00 that they would probably do the trick (these aren't even coated.just painted). The humps were waaay off & it would have been necessary to section out a length of the 3-1/2' collector to make room for installing a bend in the tubing to route it under the hump. There are humps in the crossmember that allow for the dual exhaust to go under it. Also, these were full length headers and the point that the headers end at was about 3' in front of the transmission crossmember. One set by Hedman absolutely didn't fit, then I tried a set of Hooker Competitions that fit OK, but the clearance around the power steering gearbox and the clearance around the ends of the spark plugs were problems. I have tried three sets of headers on this car. The factory cast iron exhaust manifolds were removed along time ago. The engine is an over-bored 1977 454 and it has cast iron Merlin oval-port cylinder heads with factory exhaust port locations. Pull all the spark plugs out and pressure testing cooling system for an hour or 2 and then crank the engine over with spark and fuel disconnected and using white paper to catch any “spray” from the spark plug holes.Howdy, I'm having some frustrating and expensive problems with the exhaust headers on my 1967 Impala SS. The way to verify this concern is to get the engine hot. Just need to watch misfire counters with a scan tool while it’s misfiring. This little bit of coolant can cause misfire for the first few minutes after start up. It allows a little bit of coolant into the cylinders after it is shut off since there is about 15 psi pressure in your cooling system. Does the exhaust smell excessively strong during a cold start? I’ve seen a handful of 3.4 liter gm engines with bad headgaskets causing rough run on 3 cylinders during cold starts. These engines were bad for the fuel pressure regulator leaking internally causing fuel to enter the vacuum system causing rough run on start up. The shaking is most likely an engine misfire. First of all your engine does not have a timing belt.