cleaning up the slant six head

805moparkid said
wrong... Where is bill when you need him with the chevy ??302?? and the slant comparison. They share the same cylinder volume and the valve sizes are way different. As I keep saying slants have a problem getting air in, not out, the exhaust port can be ported as far as the intake. You need to get a bigger valve in to increase cylinder fill and therefore increase VE=MPG/HP/TQ. Now on a stocker build I think adding JUST the 1.7 intake and then cleaning up the head would have great results. As far as porting unless you hit water on these ifs going to be better than stock, yes you can open them up to much and hurt flow, but as I stated over and over a gasket match and deep bowl cut, then blending is going to be MILES ahead of stock. You do what ever you want but don't state that info isn't out there as you lead other people down the wrong path.

Chambers, read my last post, relieve the valves to unshroud them and mill to needed CC's for compression. This isn't hard. If your worried about screwing it up put an ad out here for a head work (wild may pick it up but havn't seen him in awhile or even IQ52, Brian, lots of pro's on here) or take it to your local shop and tell them I want a gasket match and bowl work, pay the money and be happy...

But don't say it hasn't been done well or that we are pissing in the wind... A lot of work goes into our motor's and your going to step on the toes of the people trying to help...

I dont know who/where Bill is either but it sounds like it would be nice to hear from him.

As I mentioned I will do the gasket match/blend ect. I dont see how I am leading anyone down the wrong path, extending a word of caution possibly in what I am finding with my re-search.

Next time you decide to do a head and if you have a flow bench avail it would be nice to see the work performed and the numbers achieved. 87 pages of info on this site alone and I have not yet found these definitive results going either way.

Quote.....As far as porting unless you hit water on these ifs going to be better than stock, yes you can open them up to much and hurt flow............My point exactly and this is what as I mentioned someone might be grasping without the proper equipment, its nice to have bragging rights of all the work that has been performed but without concrete solid evidence that advancements have been made and where they came from specifically than again its like pissin in the wind with the auger to a novice like myself.

One with many years of experience doing head work would have learned over time what to do and what not to do and I was hoping this thread would bring out his specifics. So far success to a certain degree.

I will continue looking into avenues such as un-shrouding the chambers like you mentioned. Only makes sense to me at this point, sounds like good solid ideas that could only work.

Thanks