Thread: Help me out, thinking weird again

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Must have spent too much time today bored with wet sanding...


Here's what I'm dreaming about today for my '57 gasser project. IMO to stick with what the tri-five gassers were in the mid 60's, it's gotta be a mouse motor that will rev to the moon!!!!

so, How's about this:

Dart SHP Pro 4.125" block

3.25" lightweight crank
(Callies Magnum or similar?)

Aluminum rods
(Pat has mentioned Bill Miller and one other brand)

Custom pistons (of course)
(going to be running E-85 so CR of 12.5 ti 13.0 is fine without playing with
the cam timing

Solid roller cam with the forced oiling rollers

Brodix -10 heads
(Cause a buddy has a pair he wants to trade for some labor)

Tunnel ram with 660 Holley's

What do you think, what did I leave out, should I be committed?

Thanks

Dave;
Do those blocks come supplied with anything like girdles for oil valley or bottom end. screen for bottom end, cam shaft ect. I have never bought a Dart block so I am not sure.
HE! HE! HE!
But I am curious!
Kurt

Here is the thing about building a car like your 57, Dave. It has to be impractical as h***, loud, and outrageous. When you pull into a show or just drive it you want the crowds to part, like Moses and the Red Sea. Gassers, by their very nature, are animated beasts that really only belong on the drag strip, but we love to take them on the roads anyway.

I know a person can get more HP per buck from a big block, but lots of gassers in the day screamed with high winding small blocks like you are describing. Harry Luzader's green 32 Ford, although technically an Altered, ran a little 292 CI Chevy that pulled the wheels in all four gears.

No matter what you do to this one it is going to turn out cool.

Don

Brodix -10, 355-406 cubic inches, 11.5 minimum static compression ratio, 4000-7000 rpm's, 2.080" intake, 1.600" exhaust.
FLOW NUMBERS
0.200 0.300 0.400 0.500 0.600 0.650 0.700
INT 145 195 240 253 262 262 262
EXH 110 139 155 161 166 168 168
1.550 Roller Valve Spring - GA 1000,
240 lb Closed, 550 lb Open,
1.950 Installed Height,
0.700" Maximum Lift
• Retainers:
1.500 10° Titanium - MA 2398BR
• Valve Locks:
10° Jumbo - CC 611
• Rocker Studs:
7/16 - BR 716L, AR RRS-4I
• Guide Plates:
5/16 - CC 4808
• Valve Seals:
11/32 - US VS529V
• Intake Gaskets:
FEL-PRO 1206, COMETIC C5414
• Head Gaskets:
400 - FEL-PRO 1004, COMETIC C5403
• Exhaust Gaskets:
FEL-PRO 1406, COMETIC C5415 ( STD)
MG 1500, COMETIC C5424 ( SP)
• Head Bolts:
MANLEY 42313
• Head Bolt Washers:
MANLEY 42102
• Head Studs:
ARP 234-4301
• Spark Plug Starting Points:
AUTOLITE 51 or NGK B9ES for alcohol
• Valve Angle:
23°
• Angle Milling:
.0078 in per cc
• Flat Milling:
.0060 in per cc
• Angle Machining:
Not Available
• Dowel Shift:
Not Avaiable
• Pushrod Slots:
Standard
• Stud Girdle:
Standard - BR 6435
40/60 - BR 6440
• Rocker Arms:
Standard
• Lifters:
Standard

Originally Posted by Dave Severson

should I be committed?

Yes, committed to building a big bore, short stroke, long rod, high compression, alcohol-burning 352-powered tire yanker!!
I'm gonna run up a couple or six DynoSims just for the fun of it.

Dave,
I have always been a big fan of RPM small blocks, go for it. A friend of mine just built a 4" bore with a 2" stroke. You should hear that thing
Ken

First DynoSim, more to come.
4.155" X 3.250" small block Chevy (352 cubic inches).
6.209" rod length
12.5:1 static compression ratio, E85 fuel
Brodix -10 heads
Max-Flow tunnel ram mounting two 650's
Large tube, stepped race headers
Crane solid roller #118581, 240/248, 0.543"/0.561", 110 LSA, timing events @0.050" 15/45/59/9, retarded 2 degrees
RPM HP TQ
3000 252 441
3500 319 478
4000 397 521
4500 479 559
5000 544 572
5500 595 568
6000 640 560
6500 670 542
7000 669 502
7500 659 462
8000 626 411
Peak volumetric efficiency 124.3% @6500
Peak BMEP 248.1 @5000

Everything the same, except swapped in a Lunati #60133, 249/255, 0.585"/0.600", 110 LSA, Timing events 18.5/50.5/61.5/13.5, retarded 2 degrees. This cam makes less power than the previous one until 5500.
RPM HP TQ
3000 234 410
3500 297 446
4000 376 493
4500 461 538
5000 540 567
5500 600 573
6000 645 564
6500 680 550
7000 693 520
7500 681 477
8000 657 431
Peak volumetric efficiency 126.1% @6500
Peak BMEP 245.0 @5500

I knew there was 700 hp in this combo, I just had to find the right cam to get there. Swapped in a CompCams #12-900-9, 252/258, 0.630"/0.630", 106 LSA, timing events 20/52/55/23, retarded 2 degrees.
RPM HP TQ
3000 237 414
3500 299 448
4000 380 499
4500 466 544
5000 546 573
5500 621 593
6000 663 580
6500 698 564
7000 700 526
7500 688 482
8000 671 440
Peak volumetric efficiency 119.2% @6500
Peak BMEP 253.7 @5500

If you are going to use it on the street i would beware of the ally rods, I had a set from Miller that were called street duty for my old 6/71 blown 427 Ford and they stretched

Dave, I love it and I want a ride in it !!!!!!
But It would be way kewler with Hilborn stacks stickin thru the hood.

I was thinking this is a race car because of the Aluminum Rods.
I was gonna go aluminum in my cleveland but thought I should go with steel eagle rods since mine will be driven on the Street more then the track.
Kurt

Originally Posted by Ken Thurm

Dave,
I have always been a big fan of RPM small blocks, go for it. A friend of mine just built a 4" bore with a 2" stroke. You should hear that thing
Ken

Holy s#@t!

Originally Posted by Ken Thurm

Dave,
I have always been a big fan of RPM small blocks, go for it. A friend of mine just built a 4" bore with a 2" stroke. You should hear that thing
Ken

I bet it revs like a 2 cycle!

Don

Dave, back in the early 70's I raced a 67 camaro with 327CI small journal with 283 steel crank 13.5 cr trw full floaters don't remember cam specs but it was a factory GM solid lift. It scared more guy's at the line then it beat because I would hold the rev at 7500 to 8000 at staging, man would that thing launch hard,it would sit on the wheelies bars thru 2 shifts, carry the wheels 2 to 3 feet off the ground the whole time. rev limiter was set at 9500. I had to tear it down every other week and replace brg and rod bolts. Boy was that fun................lol
Bradc

bill millers are one maker of rods alum rods need to be in the hole abit more then a steel rods there s GPR and miller and others . miller rods for the BBC i have were made for the build there far from cheap and far from junk.... some have been used on the street in a low mile engine. BME rods are made with a Boeing alloy . all alum rods grow. as for a small stroke and big bore SBC well there is a new crower crank on race junk for a BBC 3.00 stroke and use a 4.625 bore make your sbc sound like a mosquito

Thanks for the input everyone!!! Richard, those numbers look phenomenal!!!! As Pat mentioned, been seeing some very interesting crankshafts on Racing Junk....have to see what I come up with before dialing in the rest of the parts...

As for "streetability", I have a very loose definition of it.....Doubt it would ever see more then a bit of Saturday night action, and maybe a car show or two---and with a car like that it would more then likely ride in the trailer to the show, then some cruisin' (or whatever else comes up!).

Howard, I do have a set of Hilborn's left over from the sprint car days.... After some play time on the street I'd like to switch it over to the injectors on methanol and strictly drag racing....

Again, thanks for all the help gang!!!!!