Anybody repo the hose that attaches to the carb and I think attaches to the back of the intake? It is a molded piece, black rubber about 1/2-to5/8 in diameter. Thanks
If you mean the PCV hose....Frank McIntyre makes them. http://www.buickperformance.com/1970PCVHose.htm That is the link to the 70 version...should also work on the 71-2 models..though not correct.
George, I have gone through the parts book 76 printing I have and it lists the early part number for a 71 455 as well as 70. It also lists the later part number as well for 71 455. The book contradicts itself. No way to really tell what a 71 came off the assembly line with unless from an untouched car. Do you have anymore insite on this? I took the second type off of a 71 Electra but it looks like it may have been relplaced as later date code than 71. I have both types to compare and the later style goes up higher in back. Ever seen an untouched 71 with original hose? Very interested in this. Second type I found still has paper tag on it as does my NOS early style.
Well the 71 may be the same as the 70. I have not figured a way to tell when they swithced. The later style goes straight up higher after it leaves the PCV valve before it turns. The early style make a qhuciker 90 degree turn. I can post a picture of the two together sometime in the next few days.
I spoke to Duane about this issue at Columbus this year. 70 versions are formed slightly different than 71 because the 70 thermostatic choke has a "J" clamp/clip to hole the PCV hose in-place. The 71 versions do not have the clip.....so the hose is formed slightly different. The 70 version should work for the 71 models.....although a purist may be able to tell the difference. I would buy Frank's repro and use it.
Thanks George, The 71's also had a clip to hold hose but it is punched into the wire shield. When you use the earleir style the hose would hit the back of the intake and maybe get a burned from heat if strecthed to fit the 71 clip. I did a test fit and this is what I found. I will try and post a picture of both types. The later style is a good shape original I may use off 71 Electra. Still has paper tag
