SilverFox
Flashaholic
After the transplant... I\'m ready to GO!!!
This last weekend my three boys and I formed a pit crew and transplanted the engine in my 1953 GMC. It had a tired 350 in it. I have put around 170000 miles on it and it was in the truck for 5 years before I bought it. It had flat cam lobes and was starting to backfire through the intake manifold. Every time I started it up, there was a puff of blue smoke, and pulling a trailer over the pass was getting to be more difficult.
I have been planing this transplant for over a year now. Now it is a reality.
My first choice was the tuned port fuel injection Ram Jet 350. I was all set to modify the fuel system to handle the return lines to both gas tanks, but further research revealed that 92 octane gas was highly recommended. I was in Anchorage last month and stopped at a Shell station to fill up and realized that their premium gas was rated 90 octane.
If the truck was a weekend driver only, this would not be an issue. This truck is my daily driver, and the extra 0.20 per gallon would cost a lot over the next 200000 miles. Also, if the supreme octane rating continues to drop, in a few years 87 octane may be premium.
The next option was GMPP P/N 12496968. The 350 HO deluxe crate engine. This is what we dropped in.
WOW!!! What a difference.
Time to go and polish some chrome.
Tom
This last weekend my three boys and I formed a pit crew and transplanted the engine in my 1953 GMC. It had a tired 350 in it. I have put around 170000 miles on it and it was in the truck for 5 years before I bought it. It had flat cam lobes and was starting to backfire through the intake manifold. Every time I started it up, there was a puff of blue smoke, and pulling a trailer over the pass was getting to be more difficult.
I have been planing this transplant for over a year now. Now it is a reality.
My first choice was the tuned port fuel injection Ram Jet 350. I was all set to modify the fuel system to handle the return lines to both gas tanks, but further research revealed that 92 octane gas was highly recommended. I was in Anchorage last month and stopped at a Shell station to fill up and realized that their premium gas was rated 90 octane.
If the truck was a weekend driver only, this would not be an issue. This truck is my daily driver, and the extra 0.20 per gallon would cost a lot over the next 200000 miles. Also, if the supreme octane rating continues to drop, in a few years 87 octane may be premium.
The next option was GMPP P/N 12496968. The 350 HO deluxe crate engine. This is what we dropped in.
WOW!!! What a difference.
Time to go and polish some chrome.
Tom
