Chevy OBS V6 to 454 swap Part 1 Motor Mounts and BB Springs

[@davidhead4313]

On installing the rubber isolator, I just put it where it goes on the top of the spring and wrapped some electrical tape around it and the spring in 3 different spots. Always worked for me.

[@ChazOutlaw]

Glad my 89 is starting with a 350. I'm swapping in an 84 454/th400 also from a motorhome. Thanks for posting these videos, I've only watched a cpl, But found u informative, and pretty entertaining. I look forward to watching the rest

[@NavyDad]

Thank you! I'll be back on the channel shortly, finishing up the 70 Chevelle then back to O'l blue

[@illuminancecrt8930]

Appreciate the video. Question: When uncompressed, the old and new spring appear to be the same length. When you dropped the lower control arm, the old spring had no tension and you were just able to pull it out. Couldn't you have just put the new spring in there and jacked up the lower arm without using the spring compressor?

[@NavyDad]

Hi the old spring were worn out V6 springs with about 220K miles on them. The new springs are bigblock 454 very hard to compress. What you can't see is the thickness of the steel coil its much thicker than the V6 spring.

[@zachbrown9681]

Could i get a link to the springs your using and or possibly do you know if those springs work with the k1500 i want to retain factory height or avoid having to lift more than one inch

[@NavyDad]

I have not worked on a GMT400 k1500 in a long time but as I remember the front suspension is completely different, the spring parches are outside the frame I think,

[@willy3sticks647]

I'm putting a 1995 454 in my 1995 2 door tahoe Thank-you for the great video

[@NavyDad]

Cool! and thank you!

[@cedricsanders1977]

@@NavyDad did i need to swap the v6 mounts out for the 454?? or its a direct fit

[@NavyDad]

@@cedricsanders1977 no they are very very different i show how to replace them in this video.

[@cedricsanders1977]

@@NavyDad do the v8 mounts bolt direct in the same spot where the v6 mounts was??

[@NavyDad]

@@cedricsanders1977 No they do not but I cover that in the video

[@kevinshaw3979]

How do I get the whole procedure.from you ? Not very good on this computer stuff Putting a 1981 454 and 400 transmission in my 94 gmc shirt box 2 wd Thanks Kev

[@NavyDad]

so that engine and trans is old school, no fuel injection and no electronics for the trans. is that your plan as that "kinda" easy

[@MarioGarciaV1]

I want to see the diferent height with the new coil springs!!

[@NavyDad]

The physical length of the springs is the same old V6 and New BB. These are not lowering springs. I have 2” Belltech drop spindles. After the 454 is installed they “should” ride at the same height as before. 4” drop in the back and 2” in the front. I’m not going any lower than that as I still use it to haul stuff

[@bluesky-vw1jo]

What about the transmission? And rear differential? And rear springs or leaves? Do you replace all of them for the big block?

[@NavyDad]

yes if swapping to a 454 a stock 4L60 will not last long I bought my 454 and a 4l80e together. yes I'll be replacing the rearend. mine was a 3:42 going with a 3:73 and will swap in a Yukon posi, should be fine mine its not a high horsepower build. the rear springs are the same. none of the GMT400s has a true posi axle the G80 was not a real positrack it was a low speed locker manly for wheeling The SS 454 had a one-off rear axle it was a 14 bolt 5 lug G80 in 3:73 with optional 4:10 if you can find one buy it they were pretty good for a stock setup but very hard to find and $$

[@Anonymous-ze4sx]

Man I wish I would have known about that spring compressor you have back in 2019 when I did my front end. I had a helluva time I tried using that lil weak claw spring compressor and it was scary so I didn’t use it. I finally just bolted my lower control arm on to the spindle, slid the springs in then put my jack under the lower control arm and compressed the spring using the jack and lower control arm but anyway do you wanna sell those rally wheels? I been looking for some and I’m in Tx

[@NavyDad]

I sold the wheels 2yrs ago that was just the spare. Yeah the jack trick worked fine for the old V6 springs, I tried to compress the new bigblock springs with the jack and it just lifted the whole truck up even with the V6 still in it, so had to use the compressor.

[@bretteaster9174]

What springs did you use? Are they from a factory 454ss pickup? Link? Thanks

[@NavyDad]

At the time I bought them springs were hard to find. I could not find stock 454SS springs anywhere, could only find lowering springs. I already had 2" Belltech lowing spindles and I don't want to go any lower than that, I still use it as a "truck". I went with Precision Springs Part #SP08283 at www.oreillyauto.com/ they are a progressive spring and should work great. I have the engine/trans in the truck now and looks like it will sit right after everything else is back on. However, if you are not using drop spindles, I'd suggested Belltech lowering 2-3" Part #23452 easy to find for about $200

[@omaewamoushindeiru1819]

Damn this is the exact thing I'm doing 😂 I got a old 454 in a motor home to slap in my first truck

[@NavyDad]

Very cool... well its in storage right now, need to finish the Chevelle (454 too) its been slow going I all but broke my leg in the corvette accident, still messed up and now its cold too lol should be back on the Truck by June.. or sooner

[@omaewamoushindeiru1819]

@NavyDad I plan to hop on my truck here in a few days, If not two weeks. I didn't get to watch much of your video, but I have a manual 89 pickup, so it may be a bit different.

[@NavyDad]

@@omaewamoushindeiru1819 motor mounts and frame are the same, the only difference is the transition cross member is different.

[@shootermcgavin2819]

What website did you buy the springs?

[@NavyDad]

At the time I bought them springs were hard to find. I could not find stock 454SS springs anywhere, could only find lowering springs. I already had 2" Belltech lowing spindles and I don't want to go any lower than that, I still use it as a "truck". I went with Precision Springs Part #SP08283 at www.oreillyauto.com/ they are a progressive spring and should work great. I have the engine/trans in the truck now and looks like it will sit right after everything else is back on. However, if you are not using drop spindles, I'd suggested Belltech lowering 2-3" Part #23452 easy to find by the part number for about $200

[@shootermcgavin2819]

@@NavyDad My truck will not be lowered. Go to Oriellys with that part # huh. Very simple. Thank you sir. What is the status of the truck?

[@NavyDad]

​@@shootermcgavin2819 been busy with work and family stuff but the engine is in. I'm working on the wiring harness which is the biggest part of the build. I'm behind on posting because I broke my Corvette (91 no crank) I was stumped for weeks before I figured it out last Saturday and its back on the road. I may have to do a vid on that its was simple but not lol

[@shootermcgavin2819]

@@NavyDad Oh i know how it it haha. And caught in between Thanksgiving and Christmas is choppy waters