swapped 3500 heads

[1988GTU]

it's possible that he doesn't want to deal w/ the mount issue with the J-bodies. it's not a big expenditure but it's just one more thing he doesn't have to deal with then....

that's part of the reason that i'm not going 3400, although i could get one easy and cheap. Plus i'm getting a great deal, since i already have a 90k mile 3.1 and a smokin' deal on everything for a hybrid. I'm shooting to beat a lot of stock/minor modded 3400 swaps.....

You'd think that someone would sell 3.1MPFI hybrid 3500/3400 pushrods for those that want to do the topend mod... I'd 99.9% buy a set or two.

[RedBird]

that's true. it's funny that i've been thinking about the pushrod thing all day but didn't mention it. LOL, trade the mount hassle for pushrod hassles. in that case the 3400 does sound that much better, doesn't it oh well.

there's an idea for the store..... Hybrid Pushrods

[1988GTU]

there's an idea for the store..... Hybrid Pushrods

I hope Ben reads this.

[bszopi]

The problem with the pushrods is the fact that each hybrid is different. There is the hybrid with the stock cam or a myriad of aftermarket cams. Each one would need a different size pushrod. There have been several discussions on this over the years, so maybe we should just compile the list of different lengths and incorporate it into one of the site articles. Since there are also a bunch of different companies that can do custom pushrods, once a person has the correct info, they can just order it. It wouldn't be profitable for Ben to carry them because he would have to stock all the different variances in order to get a decent price and would most likely end up with a ton of extras because it honestly isn't going to be something alot of people are going to buy.

[1988GTU]

I understand the cam issue being a probable cause to pushrod length, but I dont understand it when a 272 cam can be put in a 3.1 and not need custom set of pushrods.. ??

[Driver_10]

Is that an aluminum flywheel? If so where did you get and how much?

[1988GTU]

I am sure it's a fidanza flywheel.

http://www.coximport.com/fidanza/

[bszopi]

The 272 may be able to use the stock pushrods, but who says they are the ideal length? So sure, a "generic" length could be made, but then Ben would just be selling mediocore parts...

[rickykline]

my flywheel is a fidanza... i bought it off of ebay...

[1988GTU]

The 272 may be able to use the stock pushrods, but who says they are the ideal length? So sure, a "generic" length could be made, but then Ben would just be selling mediocore parts...

True, but I'd be willing to settle for that.

[bszopi]

But again, in order to make it worth it for Ben to buy them, he'd have to buy a large quantity, and then still sell them equal to or higher than other places. So it wouldn't be worth it to him. Find out the right length (its been discussed on here before, and its most likely on domesticcrew as well), then order it from one of the online stores.

[Identity Crisis]

My whole goal is to do something others are not doing and to see how much power I can pull out of this engine combo.

So my question again to those that might know, what are the major issues if I use these on my 3.1L Block instead of going with the 3400 heads? on a hybrid V6/60.

[RedBird]

i dont see any real problems from any other hybrid. you'd have to drill the block for the LIM to block gaskets just liek putting 3500 heads and intakes on a 3400. i haven't looked much at 3500's, so i dont know a lot about the coolant lines and such......

[SappySE107]

Its all the same between 3100 and 3400. I think the 3100 bore is right on the edge of the combustion chamber so if thats true its fine. I don't have a 3100 gasket here to compare with though, just the bore measurement.

As for the pushrods, each application has potential to be different. MMS sells stocklength which is pretty pointless. Even if I sold a set that matched 1 setup, it might be .010 off from someone else using a different cam or shaved heads or decked block. You should really do the measurements yourself and have them custom made. Crane isn't very good for tolerances though. I can try to find a place to make us a quality custom length pushrod on a per order bases.

[RedBird]

if you did that that'd be nifty but if crane isn't too great can you just recommend a place that makes good quality pushrods? I *am* going to need a set in the not-too-far-off future.....