First time out
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First time out

  1. #1
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    Default First time out

    Well finally got the chance to drop in the 74 tahiti I picked up in December.

    Did 60.7 MPH at 4300 rpm. No real issues, I had addressed most of the stuff I knew needed attention over the last month or so.

    Thinking ill do a motor swap soon as I have another 455 in the garage and want yo see if it will pull any higher with a simple cam swap.


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  3. #2
    Hoodys and swim trunks Elkidminoltu's Avatar
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    Awesome! Looks like she's running very smooth. I'm sure you're aware that those 455's don't like the high RPM stuff for very long before they drain the pan. Do you have oil drain back mods done to the heads or a bigger oil pan?

    I'm a firm believer in "if it ain't broke, don't fix it." haha

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    Quote Originally Posted by Elkidminoltu View Post
    Awesome! Looks like she's running very smooth. I'm sure you're aware that those 455's don't like the high RPM stuff for very long before they drain the pan. Do you have oil drain back mods done to the heads or a bigger oil pan?

    I'm a firm believer in "if it ain't broke, don't fix it." haha
    Thanks was real happy for it being the first time out, I had repaired the little issues over the last month, fuel sending unit (that was a joy in the bow tank) and added a thermostat and bypass kit knowing if be running in the cold water.

    I have done a bunch of reading on the olds, have BTRs, mondellos manual, and read the practical olds manual. This has a 10qt milidon pan on it, I'll be putting drain back lines in my spare heads so they'll be ready for if I try to spin a few more hundred rpm. Keeping am eye out for another used pan to modify, don't want yo spend the cash on a new one when I really don't need two of them. Luckily I have a couple spare blocks in the garage to tinker with, some can always drop the original back in if I make things worse.

    Learned i I will never keep track of the gas $$ I put in this again, ran about 20 miles and used a half tank it seems.

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    Hoodys and swim trunks Elkidminoltu's Avatar
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    Quote Originally Posted by polishedball View Post
    Thanks was real happy for it being the first time out, I had repaired the little issues over the last month, fuel sending unit (that was a joy in the bow tank) and added a thermostat and bypass kit knowing if be running in the cold water.

    I have done a bunch of reading on the olds, have BTRs, mondellos manual, and read the practical olds manual.

    Learned i I will never keep track of the gas $$ I put in this again, ran about 20 miles and used a half tank it seems.
    Good idea on the t-stat and bypass kit. I noticed a little smoke from the breather at the 0:11 sec mark as the camera pans over the motor. Can't tell if it's blue, or white. My assumption is since you're running the t-stat in it that it's just condensation burning off in the valve covers. Sounds like you have a good knowledge base going on these motors and we look forward to seeing the progress.

    20 miles?! What river were you running?

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    Quote Originally Posted by Elkidminoltu View Post
    Good idea on the t-stat and bypass kit. I noticed a little smoke from the breather at the 0:11 sec mark as the camera pans over the motor. Can't tell if it's blue, or white. My assumption is since you're running the t-stat in it that it's just condensation burning off in the valve covers. Sounds like you have a good knowledge base going on these motors and we look forward to seeing the progress.

    20 miles?! What river were you running?
    The grand river here in GR.

    Great eye on the smoke, I believe it was caused from some fogging oil that was remaining on the heads at the spark plug holes. I was concerned when I first saw it as 4 spots per side but was relieved after it stopped and I thought it threw.

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