Wow back in the day grade 8 ment something. I stretched two of these with a regular wrench without really torquing on them.. 
CK5
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how can i get more power from my 454?
- Thread starter the_blaze
- Start date
Getting close. Just waiting on a new harmonic balancer. 
Hey guys I had a little rough patch and had to put the project on hold. I'm getting ready to wrap it up and put this 454 in the jimmy. I'm looking for opinions and advice on a couple more things.
1. Thoughts on stock vs poly vs solid motor and transmission mounts. If you have a preferred brand what is it?
2. Dual 3" vs 3" with x pipe vs 3" with an H pipe. What exhaust style is best? What will put out the best sound and power?
1. Thoughts on stock vs poly vs solid motor and transmission mounts. If you have a preferred brand what is it?
2. Dual 3" vs 3" with x pipe vs 3" with an H pipe. What exhaust style is best? What will put out the best sound and power?
Carcinogen
1/2 ton status
Exhaust is a toss up, either X or H. H is louder(IMO) but I have seen a few dynos that show there isn't much of a difference(<5 HP). Just something to balance the exhaust pulses to help with scavenging.
Yeah that's what I'm hearing. Am I currently losing any power with my dual 3" exhaust system? From the headers back is like 4 or 5 feet long with magnaflow mufflers. I'm debating changing the exhaust but only if it's worth the money
Has anyone tried poly motor and or transmission mounts? I'm thinking of getting some but I want to hear from someone who as used them. I'm thinking of this kit : http://pages.ebay.com/motors/link/?nav=item.view&id=310376894580
Carcinogen
1/2 ton status
This is a good exhaust read: http://www.exhaustvideos.com/faq/how-to-calculate-muffler-size-pipe-diameter/
Found that link here actually(not sure who posted it though...)
Supposedly you gain 20-30 HP/TQ gains with an X or H pipe but that is something that I recall reading from a magazine and you can never really trust them to be un-biased.
Found that link here actually(not sure who posted it though...)
Supposedly you gain 20-30 HP/TQ gains with an X or H pipe but that is something that I recall reading from a magazine and you can never really trust them to be un-biased.
All my mounts are poly
You are not soposto do a poly trans and without a poly motor mount.
Ok cool. Do you feel a bunch of shaking or vibrations or any changes worth mentioning?
nope
royjones
Trucker upper
All 454sfrom the factory are external balanced engines. They will also have a weight on the flywheel. Does yours have them?
Yes it has its balancing weights. However I know that when you put a big cam in an engine chances are it will gain a big lope and idle a little rough. Since I just added a big cam I'm just concerned that more solid motor and transmission mounts might shake my brains out at idle.
Did you notice any gains? Any pro's. In your opinion was it worth the money?
I have the competition motor mounts that two of the vendors on here sell. and a custom t-case's mounts.
Before I built the t-case mount I had the same type as the one you are looking at.
I think if you mounts are bad buy urethane ones, if you are doing it to just do it, save the effort.
Not sure I would get that type of motor mount that are on the link you posted. The trans mount will work though.
Before I built the t-case mount I had the same type as the one you are looking at.
I think if you mounts are bad buy urethane ones, if you are doing it to just do it, save the effort.
Not sure I would get that type of motor mount that are on the link you posted. The trans mount will work though.
black dawg
1/2 ton status
If you do go with stock mounts, dont use the parts store garbage, try to find some oe mounts.
I think my transmission mounts went soft and my motor is still out sitting on the engine stand. So I was thinking while it's all out put in new stuff.
Do you have a link for mounts you would recommend?
lol it currently has the super dirt cheap orileys mounts all around, nothing special at all.
Offroad Design they are a vendor on here
DIY4x4 they are also a vendor on here
DIY4x4 they are also a vendor on here
