Thread: What heads?

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Originally Posted by southerner

:lol: :lol: :lol: :lol: :lol: :lol:

I would of thought you could of come up with more than lol.

Originally Posted by erik erikson

I would of thought you could of come up with more than lol.

Oh yeah, the full type did not come out,

Here we go again


Anyway, if you want to make cheap horsepower go for the biggest bore and stroke you can afford. SBC 350's cannot be getting that thin on the ground in USA can they ??

If you stick to the one HP per cubic inch rule it is easier to get 350 HP out of a 350 than it is to get 350 HP than a 305, I am willing to bet you can that 350 HP out of a 350 than 300 HP out of a 305 easier and cheaper and with slightly less emissions anyway.

Opps on the bore size no 4 bolts I am aware of
If I have a set of cracked 305 heads a set of cracked fuelie heads and a cracked set of vortecs ,It looks to me like the thin castings have made there way on up thru the years to present head designs pretty well , some of the other castings crack too? .....at what horsepower level does the thin casting become to weak ? If you are looking to make that kind of hp , the 305 is no good for that application.

Ok say we replace the crack prone heads with some aftermarkett heads for 500 to 800 brand new ,now were capable of 400 + hp now the block may be too weak then...... but at that point you need to start thinking 350 anyway.The point that I was trying to make is that the 305 has no flaws that are not shared by most of the other small block motors from all manufactures.If you already have a good 305 handy or installed ,there is no reason not to use it UNLESS your looking for more than 300-350 hp or need to have it rebuilt.

I understand your point and I agree with you about the castings being thinner and weaker ,but at 275 -300 hp I am almost sure 4 bolt billet mains and a blockfill are overkill.(94 z-28 camaro 275 hp stock)lots got to be too much for the drivers to handle ,86 to 94 factory mustangs 220-300 hp ,I have seen lots of em wiped out and have heard many comments on how fast these cars were.My point again is 300 hp aint no joke to most people that are just getting into this hobby or wanting performance from an existing motor combo.I am just trying to give perspective that the internet and mags have lead us to believe 300 hp is a joke and its not or that you need all kinds of aftermarkett or special factory stuff to make this kind of hp,you dont.

I also totally agree with if you have nothing to start with,there is no reason to not get a 350 or thicker walled castings,but if you already have a 305 or any motor thats in good shape theres no reason to rush out to pull the engine and trash it. I have seen a few internet stories of people building way too much engine to handle and selling it because it was way beyond there driving skills because of access to forums with very exsperianced engine builders making people think they need 400 hp or more or they are wasting there money.When everything interchanges with a 350 I dont see any waste of money or parts with a 305 ,unless you start buying heads or cranks or start having massive porting and machine work done to it.Then you are using the wrong parts for the job if you are using a 305.


Can you see my perspective?You do not have to agree,just see what I am saying The knarly stroker for double the price as a soggy response engine may not be the hot ticket for all the new engine builders,I am not saying help people build weak combos for safety ,I am just making an observation on possible outcomes.The same as with the fact about lighter thinner castings.

Yeah.........sort off ???? Okay if you have a perfectly good 305 it is dumb just to pull it out and trash it. Just do the cheap traditional hop ups, manifold, carb maybe a cam, and headers if they fit, but dont go to wild, everything in moderation. But I am coming from, by the time you get into the engine midification stage especially stroking and going the whole 9 yards you are an older more experienced driver with more disciplin ( I very much hope ). And yes chevy 37 you definitly are an older experienced and probably diciplined driver in my book.New Drivers get into trouble with stock engined cars, thats nothing new,,,, how much experience skills and dicipline do they have ? We have drivers down here that get into trouble just driving 4 cylinder cars !!! And by trouble I mean wrapping them around poles and anything else that is in thier way.

Originally Posted by shawnlee28

Opps on the bore size no 4 bolts I am aware of
If I have a set of cracked 305 heads a set of cracked fuelie heads and a cracked set of vortecs ,It looks to me like the thin castings have made there way on up thru the years to present head designs pretty well , some of the other castings crack too? .....at what horsepower level does the thin casting become to weak ? If you are looking to make that kind of hp , the 305 is no good for that application.

Ok say we replace the crack prone heads with some aftermarkett heads for 500 to 800 brand new ,now were capable of 400 + hp now the block may be too weak then...... but at that point you need to start thinking 350 anyway.The point that I was trying to make is that the 305 has no flaws that are not shared by most of the other small block motors from all manufactures.If you already have a good 305 handy or installed ,there is no reason not to use it UNLESS your looking for more than 300-350 hp or need to have it rebuilt.

I understand your point and I agree with you about the castings being thinner and weaker ,but at 275 -300 hp I am almost sure 4 bolt billet mains and a blockfill are overkill.(94 z-28 camaro 275 hp stock)lots got to be too much for the drivers to handle ,86 to 94 factory mustangs 220-300 hp ,I have seen lots of em wiped out and have heard many comments on how fast these cars were.My point again is 300 hp aint no joke to most people that are just getting into this hobby or wanting performance from an existing motor combo.I am just trying to give perspective that the internet and mags have lead us to believe 300 hp is a joke and its not or that you need all kinds of aftermarkett or special factory stuff to make this kind of hp,you dont.

I also totally agree with if you have nothing to start with,there is no reason to not get a 350 or thicker walled castings,but if you already have a 305 or any motor thats in good shape theres no reason to rush out to pull the engine and trash it. I have seen a few internet stories of people building way too much engine to handle and selling it because it was way beyond there driving skills because of access to forums with very exsperianced engine builders making people think they need 400 hp or more or they are wasting there money.When everything interchanges with a 350 I dont see any waste of money or parts with a 305 ,unless you start buying heads or cranks or start having massive porting and machine work done to it.Then you are using the wrong parts for the job if you are using a 305.


Can you see my perspective?You do not have to agree,just see what I am saying The knarly stroker for double the price as a soggy response engine may not be the hot ticket for all the new engine builders,I am not saying help people build weak combos for safety ,I am just making an observation on possible outcomes.The same as with the fact about lighter thinner castings.

Yes,I can see your perspective.
For me it has been very hard to ever sell a 305.
I have sold a few of the 334's though.

How many miles do the heads have and how much $$ we talking about?