Quote:
Originally Posted by 67chevy1series
nice job !!!!!!!!!!!  the power steering pullie didnt want to come on |
Thanks
I just spent an hour or more investigating spark plugs. Here's what I learned, the old style Champion R44T plugs will fit the vortec heads, it's just not the recommended plug. They are a 14mm thread with .460" reach, which is the same as some of the recommended plugs (accel 574 u-groove). Most of the recommended plugs however are a longer reach .708" style, which really confused me.
So I used a cross reference for Accel plugs I found on the jegs.com site and crossed the recommended plugs and found about 75-100 different plugs that match 3 accel plug numbers(574, 526, 274), in both a short and long reach, various cores and ground designs, different heat ranges, etc.
Basically there are at least 20 different standard plugs for the heads, and you could substitute just about any other plug that fits and find a cross reference chart that says it's ok. What I am going to do is see if I can find a set of the long reach plugs this morning.
Happy New Year!