Right on, wow that’s cool👌🏼 Thanks for tuning in👍🏼🏁

Gearbanger, that would be an interesting comparison between those 3 popular head choices. I’m pretty damn old and tired too but I try not to let it interfere with my enjoyment of all things Cleveland related 👍👌🏁🏁🏁.

@@danielwilson6665 I may consider it once I get the truck out of the body shop and figure out how to get what power I have to the ground. As it is with the 4sp and 3:91 gears it's a tire burner.

Thank you Terry, really appreciate it 👍🏼🏁

Thank you i appreciate that👍🏼🏁

thanks RG 👍🏼🏁

Thanks Tim👍🏼,aftermarket alloys can’t beat it👌🏼🏁. Vintage Character n Soul………irons baby😎🏁

👍🏼🏁

Right on, I’m sure they flow heads all in the same or similar fashion between shops🤷🏻‍♂️, the big 225cc version was tested on a 4.1” bore which makes a difference compared to the 195cc being tested on a 4.030 tube, forgot to mention that in the vid……. But hey they do have the slight upper advantage over a set of ported oem 2Vs at the end🤷🏻‍♂️👍🏼🏁

👌🏼🏁

bad ass

Haha😂 good example DW 👍🏼🏁

@@69JANKS … I especially like the comparison done between the poured casting molds of the internal 2-V and 4-V exhaust port dimensions. I never realized the 2-V exhaust port had such a smooth transition over the “hump” that really hurts the flow so badly in the stock 4-V exhaust ports. Well done. Now back to making that iron 2-V chicken 💩sandwich. 😁

@@danielwilson6665 haha 😂🥪 🏁, yes the 2V still has a drop n fall on the exhst floor, just not as vicious as the 4V floor 🤷🏻‍♂️🏁, but then again 2 very different sizes in cc to one another 👍🏼🏁

That will depend on the combination you have, air gab is pretty good up to a hot street combo 👌🏼🏁

Air gap is actually pretty awesome to 6500-7000 rpm. In the EFI days you would always see the EFI intakes making more low to mid range torque than even dual plane carb intakes... The air gap at least on the Chevy LS makes comparable and sometimes slightly MORE low to mid range torque than the popular EFI intakes for that and it makes more top end power. So Edelbrock really thought that design out and it's very good.

Not sure what you mean MG?, so the 2V Cleveland iron is only one type……unless your referring to the large port 4V iron heads ?

@@69JANKS the prepolution ones were american cstings but not used their, but fron the 77 XC and on were a AU upgrade and the intakes were raised 2mm, thiker water jackets an a couple less CC in the canbers, these are the ones to use. I can send you picks.

@@michaelgiglio1571 oh ok🤷🏻‍♂️didn’t know that…….. only thought the open & closed chambers in 2V that’s all…..👍🏼🏁

@@69JANKS I didnt know much about the alloy indy race versions, etc. Thank for your information. Good segments.

@@michaelgiglio1571 thanks MG appreciate it & merry Christmas🎄🎅🏁

That’s them copies from SpeedMaster(procomp) I’d pass on those to be honest……would probably need a lot of going over. Just go for a set of aftermarket alloys or oem2V irons 👍🏼🏁

If you are building for the street, I would switch to a Aluminum, they will be a little down on flow, but the aluminum does a better job of Cooling, the Aluminum transfers heat much better, it also weighs 35 pounds less a head!! The other advantage is, nobody has built a Intake manifold in the last 45 years For the Cleveland 4v. any new design are For the 2 V Head.

i hear ya ms, decisions….decisions🤷🏻‍♂️🏁

I hear ya, I got right at $1600 in mine parts and labor. If they don't work I guess I'll buy a boat and use em for anchors.

@@gearbanger57 it’ll be fine gb57, remember also these TFS heads are double that $ 🤷🏻‍♂️…….

Stock 2V iron flow around 200’ish cfm @.550”-.600” & 4V closed chambers flow 275cfm @.600” 👍🏼🏁

Thanks for the info. 👍@@69JANKS

My Stock unparted 1971 4v heads have flowed 275 on the intake with only a 3 angle valve job. no port work at all. I have 11 sets of these 4V heads and all flow 270 or more.

They are from down under, PavTek🇦🇺🏁

Exhst Ports especially smaller & raised. They are a “revised” 2V based head🏁

556 is still tuff HP, but all depends on the Combination too, Cam??…… 330cfm on a 4V is big numbers, that’ll support like an easy 650’ish hp but on the right deal eg: Compression, Cam spec & higher rpm’s 🤷🏻‍♂️🏁

She rolled over at 6400 stopped making power cam comp 248@254 about 650 lift 108 lobe separation solid roller.

@@mansourjreige677 man that’s not working at all, good power for low rpm🏁 That could of gone with a slightly bigger duration & even lift” to get them heads breathing, it has the Ci for it👌🏼….. reasonable Comp too, borderline pump gas?

@@69JANKS yes 98 octane BP Ultimate 800 double pumper hp .178 4 into 1 primaries

@@mansourjreige677 pretty cool👌🏼, are they filled 4V intake ports ?

Right on DM, yes maybe🤷🏻‍♂️ We sorta just get the idea through the combinations in them examples, Ci , pump gas friendly & the operating rpm The alloy heads have way more potential put it that way, ported irons can hold their own no doubt. Check out my Community Posts also👍🏼🏁