Smokey B

Spanks ...hit ER, you'll learn a few things on the question you asked ..
it takes a few moon's to get there more like a work wk to get it Perfect.
4.5 may take a little less?

Double06

iTrader: (1)

I saw your old 408 build and you had some flow numbers (400/700 lift) on the Catherderal heads. What did these new heads flow? I presume like a 280 cc runner or so now.

jayyyw

Great googly moogly! Awesome build you got there.

cdubbzz

iTrader: (11)

272cc runner, 2.25 Ti intake and 1.614 exhaust valves
Solid flow numbers but certainly not the "highest" on the interwebs, which goes back to flow data is just one component of a good head/good combo k bye

.200...162 intake/ 95 exh
.300...240 intake/ 140 exh
.400...292 intake/ 177 exh
.500...338 intake/ 229 exh
.600...381 intake/ 247 exh (I don't know if the intake # was a typo or not so leaving it)
.700...376 intake/ 254 exh
.800...383 intake/ 258 exh
.900...395 intake/ 258 exh
1.00...403 intake/ 258 exh

cdubbzz

iTrader: (11)

To think 2HP:CI is not possible with a top end that flows 400cfm is a bit naive. But then again many didn't think a pump gas combo would get 800+ . The other 427ci post clearly demonstrates what's possible in a more extreme combo (more compression and more RPM).

And to be clear race gas and an aftermarket block would be needed. I'm already at the threshold for 93.

jayyyw

No access to e85?

rkupon1

iTrader: (3)

Not readily available in nj. Only couple stations, one down in Tabernacle by Atco raceway,...other way up north iirc

TTur1996

Not being naive at all. Its definitely possible. I just don't see your combo doing it. With no power adder, dished pistons, low timing, only spinning it to 7500, and heads that big. The heads would be hurting you more than helping you. Whats the compression? I would be surprised its even 11:1 with those dished pistons. I know many people that have 434's and 427's including myself and no one is breaking 800. Several of us have the CID intake as well. Ours has a 1100 dominator on top too. We all have very good flowing aftermarket heads too with way more compression. You would have to spin the **** out of it to hit those numbers with your combo. I was born on a day and i sure as hell wasn't yesterday. The track always tells the truth, period.

Double06

iTrader: (1)

I think the pistons have a dome on them. A little dish for valve reliefs but look like a dome to me (check out the one side shot). You can also angle mill the heads to get more compression. Assuming a zero deck height and that dome (i think it looks like a dome) and say a 70 cc chamber he is probably about 12 to 1.

Darth_V8r

iTrader: (4)

Yeah, it has a dome for sure. It's an engine dyno. trap it to a drive line, and hook up and alternator, etc, likely 710-720 at the tires. Not too unrealistic. The torque number is not overly high, under 1.5/ci. It's just making peak tq at 6200 rpm. So, on the high end for sure, but I don't think unrealistic. Typically when I see a happy dyno, the torque number is inflated.

62nalide

iTrader: (2)

Not sure why everyone uses this to discredit an engine builder? If you are not my apologize. Engine builders do one thing, build engines not race. Baldwin has built 427-440s revving 7700rpms making 890-940HP, Bamman has build a hand full of engines with similar results, Thompson Motorsports collaborated FED on a 440 made crazy power (1032hp) just over 8k (8,075) compression are 13.0-13.5 not one spun over 8100.
Depending who is in your corner will determine the out come. Just my 2 cents.

Darth_V8r

iTrader: (4)

Agreed. I think there are more variables at the track than on the dyno. Prep, tires, air, wind, GF getting pissy right before driver gets in the car, etc...

Smokey B

If a bored over 5.3 makes 750ish @ 7500 & 12.0 compression .... You can't get 800 with a 427 + something's wrong.... Look at the Builders and your group of friends... And there thought process...

A 427 @ 12.0 and a cam with around 260 @ .050 with a 4500 carb and intake = 800. Basic *** math. No pulley's and all the extra ****. Lift in the 740+ range. Add more duration and dial in the LSA if need be to get the peak wanted..265 @ .050 with a 110+1 LSA for example.

Smokey B

My name should read 800...

Darth_V8r

iTrader: (4)

At the flywheel, yes, agreed

Kfxguy

iTrader: (1)

The thing is, say he puts it in a car, takes it to the track. Clicks off some times that are in line with the power. What’s gonna be said then? O he sprayed it? Meh, the car must be a feather. You know what, there’s always gonna be a Debbie downer, negative Nancy and haters. I say **** em and do your thing that makes you happy.

I can relate to this. I had an old turd gen camaro back in the late 90’s-early 2000’s that was full weight, full interior, everything functional, and quiet.....that was my daily driver and ran 11.40’s at mid 120’s on shitty 555r nittos and everyone accused me of spraying. Every time they would get waxed, I’d get that accusation and their excuses. When I tried to show them there was no nitrous, I then got accused of it being hidden. I said you wanna pull the interior out the car right now? I got a tool bag in the trunk too. People gonna hate. Just because they got the same **** you do and theirs don’t compare, they gonna hate you for it.

Moral of the story: take it as a compliment. If someone is hating, your doing something right!

Smokey B

Naw....NA knows NA
*Blank*.. the rest.
800 is the New 700 with a LS and old thought with a 600 HP SBC.
800 with less cubes just needs a bit more compression or RPM. I'm with the compression idea..hate when a bigger better build says something isn't being done....You and your group Ain't doing it doesn't mean it isn't being done and 800 is Old with a LS and being what some small ***** Say or call a DD. I've captured this thought Yrs ago with less cubes and under 8k. So old news.

Smokey B

Real talk.... If your @ 750 lift and 255+ duration with anything other than a 4500 carb or TB and intake. You Aren't filling no cylinder... BS is BS, add compression etc... This is coming from a person who's has less Cubes and needing a dome top..


Big bore = more surface area which in turns means less compression is needed..oh so sweet and simple.

Smokey B

today's a bad day....More I read the more I get 🤬 called a person who knows the owner of the building and having a Major case # ... This person has another shop, place where my guy (1 of the many) use to work @ who built the 383.... Get the case# = find his probation officer?... Done. Don't come for the cases filed... On probation..... Oh I'm hot! These guy are lames..with more invested. Probation officer and me...I wanna look @ dude. Thought he would have popped up or stated he's ran back to Colorado or else where..old Western called ..will travel.

Sorry C....I was thinking about gearing for a idea and it hit me ....I got Everything for the old 700
🤬
😇
Boy I tell you the 😈 is real...wanna catch the person he used..
Again Sorry!

cdubbzz

iTrader: (11)

It's all good. As Bobby Bammann would say, "you keep telling me it can't be done and I'll keep on doing it"

Think of it this way if this is a build he/I are willing to show on a public forum imagine what BamBam is doing for the true grudge customer