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Author Topic: making my 73 ford courier go fast, turn, and stop  (Read 387730 times)

fastivab6tg25mr

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Re: making my 73 ford courier go fast, turn, and stop
« Reply #480 on: February 27, 2026, 11:57:22 AM »

I wish,  it's either a valve/valve seat contact issue or weak valve springs.
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fastivab6tg25mr

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Re: making my 73 ford courier go fast, turn, and stop
« Reply #481 on: March 05, 2026, 12:28:50 PM »

Did a leak down test, 20% leakage through the intake valves, pulled the head to see if I could lap them in but was not successful. The head is at the machine shop getting the valves and seats cut. Should only take a week or so. Then back to all the checks before dyno tuning.






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fastivab6tg25mr

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Re: making my 73 ford courier go fast, turn, and stop
« Reply #482 on: March 20, 2026, 12:34:11 PM »

I picked m head up from the machine shop. Final verdict is 4 slightly bent valves from unevely cut seats caused by the previous machine shop. They think the pervious shop's pilot may have been bent and the only reason it stayed sealed for so long is the pressure from my beefy valve springs. I re-shimmed all the solid lifter buckets last night, only took 2hrs this time. Gonna assemble the rest of the head tonight. My nephew has been taking auto shop and wanting to learn about cars so he's gonna help me get it back in and running this weekend. If we get done soon enough maybe ill have him hit the buttons on VE Analize live to get it in the ball park before the dyno tune.


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MTZ

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Re: making my 73 ford courier go fast, turn, and stop
« Reply #483 on: March 20, 2026, 02:48:45 PM »

I picked m head up from the machine shop. Final verdict is 4 slightly bent valves from unevely cut seats caused by the previous machine shop. They think the pervious shop's pilot may have been bent and the only reason it stayed sealed for so long is the pressure from my beefy valve springs. I re-shimmed all the solid lifter buckets last night, only took 2hrs this time. Gonna assemble the rest of the head tonight. My nephew has been taking auto shop and wanting to learn about cars so he's gonna help me get it back in and running this weekend. If we get done soon enough maybe ill have him hit the buttons on VE Analize live to get it in the ball park before the dyno tune.




sucks about the shoddy machine shop but glad its going to be sorted out
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ur fucking feet are disgusting.

btw that nail prolly rotted from u fingering widebody in the ass

its called toering
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