Bo Dillingham
Well-known member
- Joined
- Jun 23, 2001
- Messages
- 121
- Location
- Cortland, NY, 13045, USA
- Corvette
- 1965 crimson pearl (2002 cadillac?)
Hello again, and “Thank you” to Billagroom for answering my last question. This time around, I am trying to figure out whether I have a 300 or a 350 HP 327. My car is a 1965 convertable with a number 194675S101697 on the plate under the glove box. The engine has two numbers; 5101697 and F0915HF. The harmonic balancer flange is 5/8” thick, and the Holley that was on it has 3906631-DA, and LIST-3810 on the airhorn, and R2747B on the top of the casting. It appears to be a 4160 (with the secondary metering block inside the fuel bowl).
With this information, I have gone through the Corvette shop manual and the 1965 supplement over and over again, and cannot find consistent information as to whether this is a 300 or a 350 HP 327. It is too much to explain here, but I can find evidence of both in the two manuals.
I called the local Chevy dealer parts counter and gave him the numbers. He said, “your engine is a 327 from a 1966 Station Wagon with air conditioning and a powerglide transmission, but I can’t tell you the horsepower”. The Vette has a 4-speed.
The numbers look to me like it is the original engine, and the “F0915HF” tells me that it was made on September 15 in Flint, But I do not know the year. According to one of my Corvette parts catalogues, the last two letters would confirm 300 HP if they were “HE” instead of “HF”, and the engine was 1966. I looked at the numbers under a magnifying glass, and it does not appear that the HF could have been an HE. The F is pretty clear. Since it was made late in the year, I could easily believe it is a ’66 engine, but my experience with the parts guy doesn’t give me much confidence.
By the way, the Holley has plugs where the float adjustment screws ought to be.
Can anybody do a better job of helping me that the parts guy did? Thank you for your help and patience.
Also, I am still looking for an answer to the question of replacing a shaft drive tachometer with an electronic one that will fit in the dash cluster. Any ideas?
With this information, I have gone through the Corvette shop manual and the 1965 supplement over and over again, and cannot find consistent information as to whether this is a 300 or a 350 HP 327. It is too much to explain here, but I can find evidence of both in the two manuals.
I called the local Chevy dealer parts counter and gave him the numbers. He said, “your engine is a 327 from a 1966 Station Wagon with air conditioning and a powerglide transmission, but I can’t tell you the horsepower”. The Vette has a 4-speed.
The numbers look to me like it is the original engine, and the “F0915HF” tells me that it was made on September 15 in Flint, But I do not know the year. According to one of my Corvette parts catalogues, the last two letters would confirm 300 HP if they were “HE” instead of “HF”, and the engine was 1966. I looked at the numbers under a magnifying glass, and it does not appear that the HF could have been an HE. The F is pretty clear. Since it was made late in the year, I could easily believe it is a ’66 engine, but my experience with the parts guy doesn’t give me much confidence.
By the way, the Holley has plugs where the float adjustment screws ought to be.
Can anybody do a better job of helping me that the parts guy did? Thank you for your help and patience.
Also, I am still looking for an answer to the question of replacing a shaft drive tachometer with an electronic one that will fit in the dash cluster. Any ideas?