2006-10-27 11:35:58 · 6 answers · asked by siege26 2 in Cars & Transportation ➔ Car Makes ➔ GMC
read the emissions label on the inside of the hood. should be right there.
2006-10-27 13:26:59 · answer #1 · answered by steven d 3 · 0⤊ 0⤋
Liber, and dan are the sole nicely suited solutions. With HEI device .0.5" With factors device .0.5" With HEI and a 50K volt coil you are able to bypass as much as .048" With a CD device like MSD 6A spark field, etc .0.5" On a side word, you will have the incorrect spark plug in that engine. The autolite eighty 5 is a 13/sixteen" hex, gasketed seat, 3/8" attain plug The 1955-sixty 9 or 70 (will no longer be able to recall for particular) Used the older enormous 13/sixteen" hex, gasketed, 3/8" plugs 1970 or seventy one as much as ninety 5 on gen one million small blocks used a 5/8" hex, tappered seat, .460" attain plug the two varieties are 14mm threads so as that they are going to screw in, yet once you employ the incorrect plug for the top form you have it won't seal interior the compression, plug will attain in too a approaches, or no longer a approaches sufficient. in case you have 1955-70 heads then use the autolite eighty 5 in case you have 1971 or greater moderen heads you desire the autolite 25 or 26
2016-12-16 15:32:55 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Your truck engine should have HEI ignition, so set the gap at 40 ths min.
2006-10-27 11:38:37 · answer #3 · answered by ? 4 · 0⤊ 0⤋
45 tho
2006-10-27 11:45:50 · answer #4 · answered by Mojo Seeker Of Knowlege 7 · 0⤊ 0⤋
it should be 60
2006-10-27 11:42:19 · answer #5 · answered by nc25276 2 · 0⤊ 0⤋
.060
2006-10-27 12:16:06 · answer #6 · answered by George K 6 · 0⤊ 0⤋