Re: Thunderbolt engine

Posted by David Baird On 2008/9/8 20:40:38

My 1948 Custom had a Thunderbolt head when I purchased it. However, I don't believe it was the original. As you probably know, it was and is common practice to change heads to increase compression.
I also believe that the Thunderbolt trade name didn't get placed into production until around 1953.