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Messages - Shauncb

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FE Technical Forum / FT cam selection
« on: October 10, 2024, 02:02:13 PM »
Hello everyone,

I am in the process of getting my old 330 running again and was curious if there is a better cam for a little more power than the stockers? I do plan to use this as a truck pulling up to 15,000 lbs a time or two. I'm wanting to keep it friendly with the factory power curve just bump it up a little, so maybe just a little tiny bit more lift.
Any suggestions. No roudy thumpy idle here. just good solid usable torque.

Thanks in advance

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FE Technical Forum / Re: FT "cobble"
« on: August 16, 2024, 02:25:51 PM »
The 330 I have is an HD, I have the 391 Complete, swapping rods would'nt be a problem either, I just don't know if they are pressed rods or floating.

9.4 would be a pretty decent compression ratio and possibly a .050 head gasket would help also.

What is the proper way to measure a rod to verify the length?

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FE Technical Forum / Re: FT "cobble"
« on: August 16, 2024, 12:29:28 PM »
You answered questions I was hoping for, as far as compression ratios and such. These have a big dish in the piston. How big of a dish in the piston and what cc the combustion chamber is I can't seem to find. What about a thicker head gasket to take away some compression?

I appreciate all the info in this one post. 

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FE Technical Forum / FT "cobble"
« on: August 16, 2024, 11:41:28 AM »
Hello everyone,

I'm in the process of putting back together my 68 n700, the truck came with a 330 which is a good runner but needed manifold work so the engine came out. While the engine was out I picked up a 391 with a Clark 5 speed, the 391 smoked out of the valve covers like it had blow by but had no "pressure" behind it.
Anyways the 330 runs good and the 391 probably needs to be freshened up with I was to use it.

My question is... Can I swap the 391 crank into the 330 engine? According to my math that would make it into a 357 and raise compression some. I did the work/math and everything checks out fine. let me break it down.

the 330 has a stroke of 3.5 inches, the 391 has a stroke of 3.79 inches and that equates to 0.145 inches difference at TDC and BDC, I checked the 330 and The factory piston is down in the hole 0.165 inches so putting the 391 crank into the 330 would leave me .020 down in the hole which in theory would work. My next question is, does anyone know what compression would be as the 330 was originally 7.4:1? I also need to check on rod clearance with the added stroke.

I'm not building a race engine as it's still going to have FT heads and manifolds just looking for a little more power, it's not going to pull super heavy either maybe 20,000 lbs worth of cars at a time.
I'm also trying to do this on the cheap, the 330 was rebuilt at one time and ran good just had typical exhaust manifold issues.

Anyone done this before? Please don't respond with I'm wasting my time or tell me it won't work without any supporting evidence. I know this isn't the norm for this engine but what fun is being normal and following the band wagon??


Thanks for all the help and replies, I will be needing help with bearings and such as I'm not sure if the ft uses the same rod and main bearings as the fe.

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