Best Small Block Head
#81
I was allowing for a few extras like milling, a bit of clean-up porting ( guys who don't live in the real world think that all these "bolt-on" parts are actually good to go out of the box), rockers, etc.
#83
My position is im stuck with the iron heads because they came out way after i did my iron heads. Kinda bitersweet. We all know thee procomps flow better but will a street strip engine truly take advantage of all of that extra flow ? The combustion chamber design yes and the ability to run higher compression is a big advantage. It comes down to needs, money , and personal prefrence. You can lead a horse to water but that does not mean it will drink. Im not arguing the procomps benifits . but not everyone needs heads with high flow numbers and big valves either. I have had both iron heads on diffrent ends of the spectrum. I have had freshened up heads. and heads that short of porting are all out competition heads. Someone asked what are the best olds heads. and if someone was to get a set of good sbo heads you usuallyu recommend 5's - 7A's Now if someone wanted aluminum i thing that question would be specified.
Last edited by coppercutlass; May 7th, 2013 at 05:08 PM.
#84
I agree CaptJim your 100% right, and 380 racer I raced on the street for years and on the track, I dont know what your talking about?? I said the iron heads are good, and I agree with you the aluminum are way better, lighter more cr less detonation better flow but with a tight budget you can if you do your own work and scrounge for parts do a pretty good job on the street with iron heads and when the budget allows get the aluminum because like Capt Jim said they are a cost effective upgrade, especially if you can find them used in good shape!!
#85
My position is im stuckw ith the iron heads because they cam out way after i did my iron heads. Kinda bitersweet. We all know thee procomps flow better but will a street strip engine truly take advantage of all of that extra flow ? The combustion chamber design yes and the ability to run higher compression is a big advantage. It comes down to needs, money , and personal prefrence. You can lead a horse to water but that does not mean it will drink.
#86
i think in circles because im on the fence so it makes no sense to people who think in a particular way. if i was building from scratch i think everyone here knows i would scrounge the ad's to find what i needed at a good price. which i always do. I have seen aluminum headed sbo's that have ran not so impressive numbers,
Last edited by coppercutlass; May 7th, 2013 at 05:14 PM.
#87
i think in circles because im on the fence so it makes no sense to people who think in a particular way. if i was building from scratch i think everyone here knows i would scrounge the ad's to find what i needed at a good price. which i always do. I have seen aluminum headed sbo's that have ran not so impressive numbers,
#88
I'm sticking with iron heads for the ease of use and reliability. I can port my own which takes the cost down and I don't have the money for a new fuel pump and lines or additional costs of milling a set of pro comps. If someone doesn't have the money, stick with stock stuff that has worked for decades. Also, detonation and power are no different on aluminum or iron. Granted, this was on a Chevy and I know someone is gonna swear up and down that it's different but has no evidence...or testing...just "I know a guy". This was done by Car Craft...what do they know?
http://www.carcraft.com/techarticles...t/viewall.html
Best small block head...5, 6, 7, 7a, 5a....just in case we went of course a little...
http://www.carcraft.com/techarticles...t/viewall.html
Best small block head...5, 6, 7, 7a, 5a....just in case we went of course a little...
#89
I never said they didn't. why do you like to read into whats not there. You see., to you apperantly having my own thoughts bugs the crap out of you do you know why i think that way. i shouldnt even have to explain my self as we are all entitled to our own thoughts. So who here is nonsensical. You can like pepsi all you like and tell me to quit drinking coca cola becasue of whatever dumbass reason but just becasue you feel it quenches your thirst wont mean it will quench mine. i hope that makes sense to you.
#91
[QUOTE
http://www.carcraft.com/techarticles...t/viewall.html
.[/QUOTE]
I've already said this, but I'll say it again. That article compares 2 heads, one aluminum, one iron, BUT THEY ARE BOTH NEARLY THE SAME DESIGN FOR CRISSAKES! Read the effen article! It's not apples to apples in our case, period. The irons and aluminums in this discussion are 2 heads of different design and flow numbers. It ain't the same, got it? Geez!!
http://www.carcraft.com/techarticles...t/viewall.html
.[/QUOTE]
I've already said this, but I'll say it again. That article compares 2 heads, one aluminum, one iron, BUT THEY ARE BOTH NEARLY THE SAME DESIGN FOR CRISSAKES! Read the effen article! It's not apples to apples in our case, period. The irons and aluminums in this discussion are 2 heads of different design and flow numbers. It ain't the same, got it? Geez!!
Last edited by cutlassefi; May 7th, 2013 at 05:43 PM.
#95
I never said they didn't. why do you like to read into whats not there. You see., to you apperantly having my own thoughts bugs the crap out of you do you know why i think that way. i shouldnt even have to explain my self as we are all entitled to our own thoughts. So who here is nonsensical. You can like pepsi all you like and tell me to quit drinking coca cola becasue of whatever dumbass reason but just becasue you feel it quenches your thirst wont mean it will quench mine. i hope that makes sense to you.
#96
I'm sticking with iron heads for the ease of use and reliability. I can port my own which takes the cost down and I don't have the money for a new fuel pump and lines or additional costs of milling a set of pro comps. If someone doesn't have the money, stick with stock stuff that has worked for decades. Also, detonation and power are no different on aluminum or iron. Granted, this was on a Chevy and I know someone is gonna swear up and down that it's different but has no evidence...or testing...just "I know a guy". This was done by Car Craft...what do they know?
http://www.carcraft.com/techarticles...t/viewall.html
Best small block head...5, 6, 7, 7a, 5a....just in case we went of course a little...
http://www.carcraft.com/techarticles...t/viewall.html
Best small block head...5, 6, 7, 7a, 5a....just in case we went of course a little...
Also, are you saying the 5A head is a viable option on a hot 350?
#97
OK lets see, I had a 68' Ram Rod (W31) min. NHRA weight @ 3268 weighed 3428 with me in it. Short block built by John Troxel, the Flying Plumber, using 1975 technology dynoed @ 430 HP/425 ft. tq. with cast pistons, stock rods/crank, and valve train turning 6800 rpm side stepping the clutch off the line and shifting a Liberty 2:89 close ratio (had Super T-10 gear set welded on to the Muncie shafts) trans. @ 7,000 rpm and ran 11:90 s @ 114.5 mph (yes 114.5 mph which indicates horse power) thru the lights with #6 iron heads blue printed by Racing Head Service!!!!!!!!!
Dudes, it is the combination!!!! Not one thing that makes a car run well. Currently I have BBO Olds drag car with home ported "E" heads, mild build est. HP @ 550 in a 3550 # Olds post coupe and runs 7:00s in the 1/8 @ 98 mph and 11:10 @ 119 mph in the 1/4. again it is "the combination"
Dudes, it is the combination!!!! Not one thing that makes a car run well. Currently I have BBO Olds drag car with home ported "E" heads, mild build est. HP @ 550 in a 3550 # Olds post coupe and runs 7:00s in the 1/8 @ 98 mph and 11:10 @ 119 mph in the 1/4. again it is "the combination"
#100
huh, plus I do not give a hoot!
I know what works old school so I am learning "new school" with my "new" 70' Cutlass S post coupe drag car. Education, asking questions, being humble, and talking with the people who are running well helps! LOL
Being with Olds and showing people/sponsors my desire to win and support their products propelled me to be successful in drag racing.
just my 2 cents.
Oh, and thank you 442rocketdave for your positive comment!
Flame on my people
I know what works old school so I am learning "new school" with my "new" 70' Cutlass S post coupe drag car. Education, asking questions, being humble, and talking with the people who are running well helps! LOL
Being with Olds and showing people/sponsors my desire to win and support their products propelled me to be successful in drag racing.
just my 2 cents.
Oh, and thank you 442rocketdave for your positive comment!
Flame on my people
#101
That's correct when your "opinion" doesn't make any sense when you're suggesting he buy more stuff and he's clearly trying to use what he has first.
Last edited by cutlassefi; May 15th, 2013 at 04:33 AM.
#102
I guess since dave said there is nothing wrong with iron heads it won't make sense to you either. Mark it's like shooting fish in a barrel I say someting and somehow I know you guys will be right there ready to counteract. Kinda sad. Specially since like I said opinions are one's thoughts that can't be correct or wrong since it's what an individual belives. Kinda like religion.
#112
Bridge port pennsylvania they were for a build he ended up going a different direction ( Bow tie) . I knew no matter what i couldn't get hurt.Was playing around with them they weigh 33.2 Had a set Of E heads they were 57.4 . A stock iron intake was 60 pounds I had a O4B on the bench it was 19.5 so about 88 pounds less for the two heads and intake .
#114
firefrost Gold if you get an aluminum water pump it will almost make a hundred pounds even and that is good for 1/10 in the quarter plus the performance gain in the intake and heads!!! What a deal for the heads!!
#116
Well I see this thread is still going nowhere and has come to no conclusion since I've been gone. Seems as tho most guys are not ad hering to the best SB head question. Most heads talked about seem to be BBs. A #5 W-31 is probably the best but good luck finding a pair of them in a bone yard. Porting and milling can get you close, but then modify the intake to fit.
The only way to find out if you are porting is doing any good is a flowbench. Without flow numbers it don't mean shyt.
The only way to find out if you are porting is doing any good is a flowbench. Without flow numbers it don't mean shyt.
#117
I think lots have said their " Thoughts " just as OP asked for . No right , no wrong I would pick Edelbrocks
#120
it all depends on the build and the engines demands. I ran a high 13 sec engine on stone stock 72 7a heads. No big valves nothing fancy. Just 380 dollars to freshen them up and that was it. I think part of the reason for the mixed opinions Is people have diffrent personal goals. lets say you build an engine like i had. A high 13 sec. car then spray some nitrous and you are in the 12's and you didnt need a ton of money in the heads. That is just for an example. Now you compare my #6 heads to procomps had the procomps been out the procomps would have been my choice becasue of the goals i had and what i wanted to do and spending a little more would have been good at that point. Again not eveyone will spend what i spent running iron heads my #6's cost me around 1000 and the 72 7a's cost me 380 dollars. It all comes down to goals.
Last edited by coppercutlass; May 21st, 2013 at 07:31 PM.