redtail2426

iTrader: (10)

What the reason of going with one over the other.Thinking of going with some prc 215cc cylinder heads on my buddies car and were not sure if we should get them with powder metal or bronze,and what the advantages are.Any help on this topic would be great.

sepsis

iTrader: (7)

Depends what rockers you're gonna use.

Stock rockers and you'll wanna use powdered or if you upgrade to rollers, bronze will be good.....I think.

Someone else will know for certain.

supersick99z

iTrader: (66)

My Patriot 5.3's have bronze valve guides and I am using stock rockers....other than that I don't know much about either lol

redtail2426

iTrader: (10)

okay thats what i thought,we are going to use stock upgraded rockers,so that why i was thinking the powder metal.I believe they use the bronze quides so its easier for the cnc machines to cut them during porting,but thats just a guess.But if that is the case than do they install the powder metal guides after porting?We need to get one of the sponsors to answer i think lol

Darkman

iTrader: (2)

https://ls1tech.com/forums/14109610-post32.html

https://ls1tech.com/forums/13879292-post9.html

2QuikTA

I was wondering this same question. Looks like the metal will do just fine.

red 454

i'm not disagreeing with this theory
BUT talking to CHRIS at mast motor sport he said ( quote ) NONE of there heads are compatible with YT roller rockers
stock rockers are fine for most applications otherwise use T/D or jessel
roller shaft rockers


and they have BRONZ guides

what would the mileage life be on a daily driver

with 600lift cam and 650 beehive springs

my friend has just ordered a set of the 510=302 bolt on out of the box
fully assembled ones

Jason 98 TA

iTrader: (4)

people on tech always try to make it as simple as bronze vs pm as if there were only one version of each material.

The facts are there are many different makeups of materials. You can have 10 different head manufacturers and they will all be using a different bronze. We use a very specific version of bronze that we've had great luck with. As a result I would run our bronze guides in my heads 1000% of the time. That being said some people like the pm style guides so we have recently had a custom pm guide built for us that will allow us to finish it here @ TSP.

Like I said just because someone with a $2 bronze guide has wear problems doesn't mean every bronze guide in the world is exactly the same. We spend WAY more on bronze guides than a standard pm guide would cost, but I prefer to offer the best possible product. That being said very shortly we will have both flavors in stock for our customers.