|
Group: Forum Members
Last Active: 12 Years Ago
Posts: 29,
Visits: 113
|
Yesterday while going thriough a salvage yard with a friend who is building a y block we pulled a few sets of rocker arms... one set had part # ECG 6564 A2 on all 8, another had part # ECG 6564 B2 on all 8, and the third had part # ECG 6564 B2 on 7 and 5751066 on 1... I thought the ECG 6564 a were the 1.54 ratio rockers while the 5751066 were the 1.43... if I am wrong please let me know... and why would some one put 1 1.43 on with the 1.54... also are the valve adjusting screws interchangeable?
John
|
|
Group: Forum Members
Last Active: 6 Years Ago
Posts: 2.4K,
Visits: 5.0K
|
If they have the ECG prefix they are 1.54, 5751066 are 1.43. Someone just didn't know when they replaced a bad rocker probably. 
 God Bless.  Tim http://yblockguy.com/
350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor
tim@yblockguy.com Visalia, California Just west of the Sequoias
|
|
Group: Forum Members
Last Active: 12 Years Ago
Posts: 29,
Visits: 113
|
ok... Thats what i thought... do you know if the B2 or A2 after the 6564 makes any difference?
|