Recent content by Dean89

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Are United Motor Products distributors adjustable for Cam Retard?

Just wanted to say thank you to everyone that replied to this thread! The GM hold down clamp allowed me to rotate and set the cam retard to within spec (photo of GM clamp and UMP clamp attached). I believe my problem was due to the cap that came with the UMP distriburtor. As you can see from...
- Dean89
- Post #9
- Feb 7, 2024
- Forum: Engine Performance + Maintenance
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Are United Motor Products distributors adjustable for Cam Retard?

I put the UMP distributor in the link below in a brand new GM Crate motor about a year ago in my 99 tahoe. The engine ran flawlessly for 10k miles, but suddenly started having hesitation, stumbling issues. With an old MT2500 scanner I checked the Cam Retard and it was reading -12 degrees. I...
- Dean89
- Thread
- Jan 31, 2024
- Replies: 8
- Forum: Engine Performance + Maintenance
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New 350HD Crate Engine - Additional Parts List

1. The regular 350 has been out of stock since like December on the Gm Performance website...I called them and was told there were hundreds of 350s on back order. So when the HD became available I bought it this week. I figured since I am doing the work myself there probably wasn't a warranty...
- Dean89
- Post #6
- Jun 21, 2022
- Forum: Engine Performance + Maintenance
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New 350HD Crate Engine - Additional Parts List

Thanks for all the info! I'm planning on doing the work myself. I will look into a reman 4L80 and what all is involved...I believe I had read somewhere that the 4L80e would give me worse gas mileage, than the 4L60e is why I hadn't considered it...but maybe that isn't the case. Thank You!
- Dean89
- Post #5
- Jun 21, 2022
- Forum: Engine Performance + Maintenance
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New 350HD Crate Engine - Additional Parts List

I purchased a new 350HD for my 99 Tahoe that has 250k miles on the original motor. I was wondering if someone would take a look at the parts list below and see if there is anything I should add/change to it. I'm just looking for a reliable engine with similar mpg to the original. The main...
- Dean89
- Thread
- Jun 21, 2022
- Replies: 9
- Forum: Engine Performance + Maintenance