Originally Posted by Rescue Rogers

my neck of the woods is saying anywhere from 2"-20". the average for the weathermen is about 8" or so. Boston itself is going to get blasted apparently. On that note I dont have a functional engine either, It muddied itself In JKippins driveway....I might just be a coincidence but I cant say for sure. But I am hoping for that 427 build for myself!!!!

Originally Posted by Corvettedave02

I called Silversport transmissions and they said that both versions have a 600 ft lb rating. I’m thinking about this even more so now because it would bolt right up with the same 3.27 1st gear. They are taking pre orders.

Originally Posted by gkull

I'm over 20 years and 100,000 miles with 4.11 and .64 OD. Even with the 2.87 first gear is so nice to take off from just above idle. I have tried two flywheel weights 22 pound 168 tooth 11 inch clutch steel SFI and 11.5 pound aluminum 168 tooth 11 inch SFI. I'm going to change back to the 22 pound when I stuff my refreshed 434 back in. The machine shop said that the block was ready for pickup.

Even with 4.11 the 4 - 5th jump is big! So it is not good for road racing. I had to buy a spare rea end and build it with 3.55 gears for road racing and use it as a 4 speed. Most tracks once you are moving you only use 3 gears. So 3.55 I used just 2-3-4 and my top speed was limited to mid 150's. So it would be into the rev limiter before the braking zone.

street driving with 3.55 .64 OD was about worthless and I kinda had to be going over say 85 to cruise and have a happy engine. The western states are mountainess, so you had to go 85 to not shift down on the freeways. 252/256 solid roller cam 11.7 C/R Idle hot is 1050 -1100 rpm.

I don't see 235 cc dragon slayer heads. 225 cc and about 302 cfm intake and 200 something exhaust. That kinda limits the HP. on the Wallace racing calculator. As a example and I think that Skip White motors exaggerates power level figures, or they have the one special motor for the dyno sheet. But read the specs on what they have for cams and heads to get the 600+ hp SBCs that they sell.

Estimate Horsepower from Intake Airflow (wallaceracing.com)

As to using a 930 cfm carb on a little 400 ci motor. It's not needed. I have bench flowed 830 cfm custom pro built and I never felt a need for bigger. You have to look at the big picture and where is the restriction. Big plenum single planes use less CFM carbs. I also recommend the 4 hole wood thermal spacer to give the carb boosters the biggest signal. A rated 930 cfm with annular boosters would be a excellent choice. I also just use the stock A/C Delco mech pump with .160 titanium needle and seats with just over 5 psi in my fuel log. Never run out even in the one mile drag races at the airport where I went through at 167 or something like that years ago.

Originally Posted by Rescue Rogers

But you probably aren't running around with 600ftlbs + of torque on tap either. torque makes it possible to have 3.08 and 3.36 gear ratios. We aren't talking about some little 383 small block....its an 8 liter small block!!!! a literal monster in sheeps clothing, this thing is going to rip your face off, show it to you, tear it into small pieces and shove it down your throat kind of power...I think it's closer to 700 ftlbs. he's looking for launch power and cruising fuel mileage....might get into double digits with the .64, maybe. But it's going to be sucking fuel through a garden hose at idle so every little chance to be in a low rpm is a good idea if the gas stations are more than a few miles apart.

Originally Posted by jkippin

Hey pauldana how are you, welcome back! I haven't seen you on here in alooong time. I lost your number the last time we spoke you had been between classes and just got the dyno

I tried a Center Force years ago and well it didn't work well then lasted a very short time. When I spoke to their customer service it was horrible so I will never recommend on to anyone. That was about 1989 or so maybe they have gotten better but I will never find out.

Originally Posted by Corvettedave02

My center force didn’t work well either

Originally Posted by leigh1322

Yes I keep going back and forth on 1st gear ratios, cruise rpm, and gear split rpm drops.
Probably not going to be able to make up my mind until I drive/ride in someone's and see how that combo is.
My 3;55 geared Muncie LT1 cruised fine at 3000 rpm, at 70. It didn't mind a 3500 rpm cruise but the oil would heat up after 15 min and oil pressure would drop. But it was always "intense"
I am looking for a much more relaxed cruise (with BBC 550 TQ) I think 1900 would be fine. Just worried about resonance noise if I go lower. And don't know if I want that rpm at 60 or 70.
If I go for that at 60 I can at least use 5th gear from there up. It's only 2400 at 70 then. That combo could be had with a TKX CR with a .81 OD and a 3.36.
Might be just fine there.
And then the 2500 rpm shifts fall to 1600,1600,1900,2000. Not bad. That's one of the things that made the CR Muncie so nice, the gear drops got smaller as you went thru the gears.

That's George's problem too. With the WR he has only 2000 at 70. And wants to drop that 2000rpm down to 60-65 or so. Will take at least 4.11s for him with his .64OD.