64 GTO 421 engine
This has a back story to thread.
My brother in possible late 63 to mid 64 purchased a brand new GTO. I was fourteen at time. Later in the the 60's the starter went out. He was going to have a new one put in but the starter for a 389 did not fit. The original starter was much bigger and I believe there was a difference in the way it bolted to engine/transmission housing. Anyway he pulled the starter bendix, which had broken at the gear and moved freely. When the auto place pulled a starter bendix for a 389 to compare, there was a big difference in size of two. The actual starter bendix went to a 421, which my brother purchased and went happily along his way. The auto guy did mention at that time that some 421 engines were quietly put into some GTO's of that year.
Fast forward a couple years to around early 70's. My brother had sold car to a another brother who was younger than he with no family. He had a friend who had a later model GTO, either 66 or 67, which had a tri-power setup. My brother wanted to swap the 64 GTO four barrel/manifold for the tri-power setup and they did not match up. After pulling the manifold off the 64 and then the manifold off later GTO, the heads were different in configuration. The 64 heads had very large intakes which were rectangular in shape around 1 1/4 to 3 inches with no water port for water hose coming off head. Compared to later GTO, its manifold intakes were more oval shaped and and about 1 1/4 inch across. And there was a water port for a water hose on the left head.
The engines side by side were definite a differnece in size. But when you are young and want something it was just not noticed at first glance.
The 64 GTO had no motor exchange from point of purchase brand new from dealer to when all of this had occurred.
Now the questions.
Does some one have any records of those engines being put into the cars from the factory?
Does Pontiac have information with regards to these engines?
Has anyone worked at plant where these were made who may have insight to this?
How would this affect its price with a 421 engine coming from factory.
Unfortunately the car was sold long ago as we grew up but the memory of that car and the engine has made want to know more about it.