i have heard this as well. It seems like stock the 727 takes more power and is more reliable, but built the 904s can get done cheaper and handle alot of power. This is going to be a semi budget build, just trying to find decent deals as i go buying wheat i can when i can. so to start off it will be linked up to my stock 904. just depends what i find i guess.
hmmm well this seems fine to me hahahah. like i said first engine build and i hear horror stories about stuff going wrong during flat tappet break ins, so i want to be as bulletproof as possible. i want least wear and more durability out of parts i get. thats why im looking for roller cam, roller rockers etc.
do you know what all he needed to hook up the 408 to the 904 by any chance?
yes this seems to be the general consensus that they are much beefier than the aluminum stuff, so this seems like the way im going to go. I found a set that is stainless steel from speedmaster, i think im going to try giving those a shot.
this would probable be something my machine shop would be able to confirm right?
i do have a set of pretty beat 318 heads hahahha. this may be an option if i cant find anything else. Do you remember what you needed to hook the 360 to the 904? its internally balanced. so i know my dampener needs to be a 0/ neutral balance. i also need to get a flywheel because i dont have one. will i need a weighted flexplate? a flex plate at all? what kind of converter do i need? these are the sort of questions im running into trying to get a picture for the future on what ill need. i hear alot of people say that they got a shift kit put into a 904 and thats how they built it/ is that all that it takes to beef a trans? i really dont know anything about trans so dont really know what it would entail making sure my trans was up to the task of the 408 if thats the route i wanted to go.
However, I'd highly suggest the rockers be at least bushed.
What is the difference between bushed and non bushed?
this will absolutly not be a race engine hahaha. i baby the car for the most part. that may be because of the dorky 318 thats in it though, but the most the new engine will really see are a few street pulls and maybe a few burnouts. When you say 318/340 flexplate why? would i not get a 360 flexplate? does it need to be weighted or neutral? ive heard people talk about a b&m flexplate for a 360 to go onto a 318 that was previously hooked to a 904. but since im balancing internally im unsure if ill need that or not.
Yep, a oem 360 flex plate would work fine, or just use the one off your 318. The best survival of a 904 would be to put new clutch seals in it, if it hasn't been overhauled recently. When you turn the pressure up in a shift kit, the old seals are the first to go and you will burn up a clutch pack. A 727 certainly is stronger then a 904, but a built 904 is very stout.
so the flex plate from my 318 would work? behind a 360 thats swapped to a 408? and what about converter would i need to change that?
Great information. Thank you
yes im trying to use jegs for most of the stuff, they have great customer service/support. or do you mean like one brand? in which case that would be much harder to do i think. Yes i know that im trying to do as much research as possible before pulling the trigger on any one thing or another. Trying to figure what will work with the parts i already have and the parts i want. bit overwhelming but it comes with the territory of doing anything for the first time.
Not a rant at all. Its sound advice and that's exactly why I'm here. For good advice and to maybe get a little wisdom from some people who know more and have already done what I'm trying to piece together hahaha. These questions are aimed so that I don't do exactly that, spend a bunch of time or money on parts that will not work for my application or do not benefit my application or even do not work with other parts I'm looking to buy. I appreciate all the help you all have/are supplying and thank you all for the continued support.
