I understand the recommendation and why many would do it head-off. I think part of my issue was due to ARP giving me a 55 ft lb specification. The Helicoils are NOT rated for that according to Edelbrock. The factory bolt spec was 45 ft lb
The other coils are fine and there is no issue. I am concerned with keeping them concentric with the rocker pad. I have to use the oversized kit because the Edelbrock heads use a Helicoil. The kit for the oversized just showed up today. I've done many things, but never this in confined spaces with a power booster in close proximity. I decided to do it by hand. The time-sert kit tools are top quality and razor sharp. They have a tap guide that is purchased seperately. With the machined pad it should help with alignment concerns. It's worth the 8.45 investment. The downside is these kits are a 100.00 investment Vs. 26.00 for a helicoil. For someone who has a shop the cost would absolutely be justified. Here are pictures of both kits and it's contents.
