Author Topic: 71 Formula  (Read 83398 times)

71455formula

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Re: 71 Formula
« Reply #200 on: October 10, 2019, 09:48:44 AM »
A twin turbo flat 6 in a trans am might be pretty cool, but no.
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

71455formula

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Re: 71 Formula
« Reply #201 on: October 13, 2019, 08:12:36 AM »
Here we go.

https://drive.google.com/file/d/1-JQOC0Nri9PYBYrPCmC51dSPR4z_Mdtu/view?usp=drivesdk

https://drive.google.com/file/d/1-C5cPhSLND4rZqGieo2ndne7bV2MrACH/view?usp=drivesdk

https://drive.google.com/file/d/1-LOnaxS8DXMaQQ7Nyh2uTy8MyzSrltYZ/view?usp=drivesdk

I went with a Butler built shortblock. It's a 455 block. 30 over with a 4.250 stroke, forged h beam rods and pistons. Total of 468 cubic inches. The green cord you see is to keep the motor in place till i get the trans back in place. Can't wait to get it going again and see how this car runs when it's firing on all 8 with full compression.
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

71455formula

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Re: 71 Formula
« Reply #202 on: October 21, 2019, 01:39:39 PM »
Good afternoon all. This has been the most annoying engine swap i have ever done. First the timing cover needed heli coils where it meets up with the oil pan. Then the oil pan wouldn't line up with the timing cover. Balance needed extra work to pull onto the eagle crank. Hopefully it pulled all the way down. When i went to install the trans; it would not turn, so it wouldn't spline into the clutch, so i had to tear it apart and put new cover shaft bearings on. Now the trans is waiting to be installed so i can finish everything else. It's been one of those kinds of builds this time.
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

Nexus

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Re: 71 Formula
« Reply #203 on: October 24, 2019, 08:05:52 PM »
These things always seem to happen!!!

It can make a project so darn frustrating but dont let up. The results will speak for themselves when you get the bugs worked out of it!!!
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

71455formula

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Re: 71 Formula
« Reply #204 on: October 25, 2019, 10:52:55 AM »
These things always seem to happen!!!

It can make a project so darn frustrating but dont let up. The results will speak for themselves when you get the bugs worked out of it!!!

I'm not gonna let up. Just gets annoying at times.

More about the trans and the counter shaft bearings. Put new bearings on and pt the case together and the problem was still there. Pulled it back apart and started staring at everything. Noticed something weird about the counter shaft. It had some weird markings on it. Come to find out the plug that is removed to check preloads was threaded so far in that it was contacting the countershaft. Backed it out and fixed everything. Hopefully I'll be staying and breaking in the new shortblock this weekend.
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

Re: 71 Formula
« Reply #204 on: October 25, 2019, 10:52:55 AM »

Nexus

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Re: 71 Formula
« Reply #205 on: October 29, 2019, 04:51:20 AM »
Cool that you found that issue!!

Now back to making it run!!
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

71455formula

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Re: 71 Formula
« Reply #206 on: October 29, 2019, 01:13:35 PM »
New problems. 2 to be exact. Got the motor running. Definitely runs different and better than the last. Does rev allot easier and quicker, so it'll be interesting once i get to drive it for real. During the initial run and looking for leaks. 1st. Found a leak. Where the oil pan meets the timing cover and block; it is leaking from there. 2nd. When i was cleaning up the garage i found a washer that seemed familiar. So i sent a pic of it to tick performance and low and behold. I have to drop the trans. Again. ????????????????
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

Nexus

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Re: 71 Formula
« Reply #207 on: October 30, 2019, 11:17:07 PM »
My Gawd!!!

What did they say the washer was off of?
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

71455formula

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Re: 71 Formula
« Reply #208 on: October 31, 2019, 10:32:14 AM »
My Gawd!!!

What did they say the washer was off of?

It's one of the thrust washers in the tail housing portion. Not too bad, but annoying that i have to drop it out to put it in there.

New problem cropped up yesterday. Was running the motor to do some more break in and have the base timing set at 13 degrees. Crack the throttle; comes back down to idle and the timing is off. Arg. More troubleshooting. Seems this time the build is if it ain't one thing it's another.
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

Nexus

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Re: 71 Formula
« Reply #209 on: October 31, 2019, 04:58:09 PM »
Sounds very much how my life goes all the time!!
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

71455formula

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Re: 71 Formula
« Reply #210 on: October 31, 2019, 05:46:58 PM »
Now it's gotten more interesting. I hook up a timing light to cylinder 1 and I'm at 13 degrees along with cylinder's 3 and 6. The others are all over the place.  :?: :?: :?: :?: :?: :?: :?:
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

Nexus

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Re: 71 Formula
« Reply #211 on: October 31, 2019, 06:25:48 PM »
Now it's gotten more interesting. I hook up a timing light to cylinder 1 and I'm at 13 degrees along with cylinder's 3 and 6. The others are all over the place.  :?: :?: :?: :?: :?: :?: :?:

hmmmm
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

71455formula

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Re: 71 Formula
« Reply #212 on: October 31, 2019, 06:43:24 PM »
Found a crack in the distributor cap on the #8 terminal. Gonna get a new cap and rotor kit to fix that part. Maybe that'll fix the whole thing. Otherwise I have no clue after that.
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

Nexus

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Re: 71 Formula
« Reply #213 on: October 31, 2019, 09:24:03 PM »
That'll certainly cause some issues. Fingers crossed it solves that problem
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

71455formula

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Re: 71 Formula
« Reply #214 on: November 01, 2019, 04:42:18 PM »
Did not fix the problem. Back to the drawing board.
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

Re: 71 Formula
« Reply #214 on: November 01, 2019, 04:42:18 PM »



71455formula

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Re: 71 Formula
« Reply #215 on: November 01, 2019, 05:15:50 PM »
Tried a new control module and it made no difference.
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

Nexus

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Re: 71 Formula
« Reply #216 on: November 02, 2019, 09:01:52 PM »
Dumb question time....Would the wrong cam in this cause some of the issues you're having?
Charlie

79 Esprit but like many, it will be a T/A clone
(18 years and counting but still have her)

71455formula

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Re: 71 Formula
« Reply #217 on: November 03, 2019, 01:47:56 PM »
Dumb question time....Would the wrong cam in this cause some of the issues you're having?

No dumb questions. Just having bad days and over thinking things. Gonna work on my thinking curve next.
1971 LS5 Formula. It's on the road finally!
2013 GMC Sierra 5.3l 6 speed Diamond White(sold)
2013 GMC Sierra Denali 6.2 6 speed AWD (sold)

Re: 71 Formula
« Reply #217 on: November 03, 2019, 01:47:56 PM »
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