LT1 swap update - nother boneyard score!

pagrunt

Geezer
Sep 14, 2014
6,790
113
Elderton, Pa
When I replaced the driver side mirror on my LeMans I used one off a 4 door Cutlass, it changed out just fine and looked identical, if there was a difference I didn't notice it or maybe overlooked it. I assumed the sport mirrors on all 4 doors/wagons are the same, from a glance they appear to be.
The only differences I ever noticed is the angle & height of the base. Then depending on the year, the mounting studs maybe inch or metric. The OP should just run with then. Might notice the angle difference but only if he really looks at it.
 

PBGBodyFan

G-Body Guru
Supporting Member
Mar 3, 2009
616
93
Wisconsin
I still have my old mirror for some reason, I'll have to compare them side by side closely, now I'm curious.
 
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JD1964

Greasemonkey
Thread starter
Dec 31, 2014
179
63
I still have my old mirror for some reason, I'll have to compare them side by side closely, now I'm curious.
Give us a report on that 🙂
 

JD1964

Greasemonkey
Thread starter
Dec 31, 2014
179
63
We had just gotten the LT1 dialed in nicely including all the transmission shift points. Then, it cut out while on the road. Here is what happened. MAF screen caved in and shorted the sensor.

IMG_8080.jpg
 
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Supercharged111

Royal Smart Person
Oct 25, 2019
2,433
113
Colorado Springs, CO
We had just gotten the LT1 dialed in nicely including all the transmission shift points. Then, it cut out while on the road. Here is what happened. MAF screen caved in and shorted the sensor.

View attachment 183685

I had something similarish happen, air filter fell apart and MAF sucked in a bunch of crap and a chunk of napkin on my dually.

PXL_20210823_182632454.jpg
 

Ribbedroof

"That wagon guy"
Supporting Member
Jan 4, 2009
4,156
113
Wellston, OK
I still have my old mirror for some reason, I'll have to compare them side by side closely, now I'm curious.
Here's what I found when I tried Cutlass mirror on my coupe...Malibu base on left, Cutlass on rt

IMG_0161[1].JPG
 
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MJScarangella

Master Mechanic
Sep 24, 2020
250
63
Pennsville, NJ
We had just gotten the LT1 dialed in nicely including all the transmission shift points. Then, it cut out while on the road. Here is what happened. MAF screen caved in and shorted the sensor.
Did you have the clamp in the same place as the honeycomb? Were you squashing it?
 

JD1964

Greasemonkey
Thread starter
Dec 31, 2014
179
63
Did you have the clamp in the same place as the honeycomb? Were you squashing it?
The housing is pretty thick aluminum so I doubt it can be squashed by a standard hose clamp. However, as a matter of fact the screen did have a slight bit of damage to it as I remember. Almost like it was pushed out a bit from severe backfiring. So, I had not considered it would ever cave in. But now I know and will warn other too. If you see any damage on the MAF screen, either replace the screened section or the entire MAF. We just unbolted the screened section from a MAF acquired at the junkyard and put it on our sensor.
 

MJScarangella

Master Mechanic
Sep 24, 2020
250
63
Pennsville, NJ
The housing is pretty thick aluminum so I doubt it can be squashed by a standard hose clamp. However, as a matter of fact the screen did have a slight bit of damage to it as I remember. Almost like it was pushed out a bit from severe backfiring. So, I had not considered it would ever cave in. But now I know and will warn other too. If you see any damage on the MAF screen, either replace the screened section or the entire MAF. We just unbolted the screened section from a MAF acquired at the junkyard and put it on our sensor.
makes sense... Glad the MAF screen didnt get into your valvetrain. I had to use silicone to glue rubber sleeve spacers (came with the 4 inch couplings) onto my MAF to mate it properly to my 4" cold air intake pipe. For some reason the MAF had a slightly reduced diameter on the upstream side and I used the sleeves to bring diameter up to 4". The worm gear clamps were squeezing the spacers out and if I hadn't noticed, the engine would have ingested one. I was so dissatisfied with the 4" worm clamps that I spent $35 on t-clamps meant for boosted applications. I got spooked about injesting foreign material... now it's overbuilt. lol
 
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