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My next build... need your suggestions #1059196
08/22/11 01:08 AM
08/22/11 01:08 AM
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Sunnyvale, CA
Jeepmon Online content OP
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The motor will be coming out real soon and it'll be time to upgrade the HP and make it a reliable and predictable bracket motor...

What we have to work with is a 400 block that has been bored and stroked to 451..
B1 Originals (not ported)
Intake and 1050 Dominator..

Stroker crank (unknown make/age)
13:1 pistons (unknown make/age)
Aluminum rods (unknown make/age)
Aluminum mains (unknown make/age)
Comp roller lifters
small Comp Cam

My goal is 750-800ish HP and the total budget is in the neighborhood of $4000-ish, with me doing the final assembly..

What are your recommendations?

Re: My next build... need your suggestions [Re: Jeepmon] #1059197
08/22/11 01:14 AM
08/22/11 01:14 AM
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Kevins493 Offline
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First, aluminum's lifespan is determined by cycles to failure at a given load. If the rods are unknown, I think it would be best to leave room in the budget for brand new replacements so that its not so much a roll of the dice every time you run the car.

Re: My next build... need your suggestions [Re: Kevins493] #1059198
08/22/11 01:28 AM
08/22/11 01:28 AM
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Bama
Randy.. Offline
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you need more cubes! unless you going power adder or you going to REALLY turn some RPM.

Re: My next build... need your suggestions [Re: Jeepmon] #1059199
08/22/11 02:29 AM
08/22/11 02:29 AM
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Bend,OR USA
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Cab_Burge Offline
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Make it bigger, sell the unknown parts or use them as conversation pieces 4.300 stroke crankshaft, 6.535 rods, custom pistons, actual compression up 13.0 to 1 to but not over the fuel level for the compression your going to use IE race gas 12.5, Methanol 15 to 1 and so on Have a cam ground to meet your goals for ET and weight


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: My next build... need your suggestions [Re: Cab_Burge] #1059200
08/22/11 04:04 AM
08/22/11 04:04 AM
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Arizona
Chris'sBarracuda Offline
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521"...

Call Koffel..


Chris..

Re: My next build... need your suggestions [Re: Chris'sBarracuda] #1059201
08/22/11 05:29 AM
08/22/11 05:29 AM
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robin hood country
deaks Offline
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Will a stock block last with that sort of power ?.
I would sell the short block or keep it as a spare and build something aftermarket to meet your goals.
JMO Mick


69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36
Re: My next build... need your suggestions [Re: deaks] #1059202
08/22/11 12:01 PM
08/22/11 12:01 PM
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Sunnyvale, CA
Jeepmon Online content OP
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Thanks for all your suggestions.. but it looks like upgrading to a larger stroker will quickly wipe out the budget amount... either that, or I have to open up the wallet a little larger..

I originally planned to do something less exotic.. new pistons, new rods, ported the heads and install a larger cam... But I wanted to run this past you all first to your opinions..

Re: My next build... need your suggestions [Re: Jeepmon] #1059203
08/22/11 01:01 PM
08/22/11 01:01 PM
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Bend,OR USA
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Cab_Burge Offline
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Ohoi Crankshaft Company 4.250, 4.300 or 4.375 crank costs $700.00 plus shipping, a set of RPM or CAT Steel H beam rods costs $400.00, $600.00 t0 $1000.00 for custom pistons, $350.00 to balance it and your in the higher HP output ballpark, depending on what compression, camshaft and so on. Keep the heads that way they are now and shift it at or below 7000 RPM, deadly bracket combination that will go faster than what you have now


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: My next build... need your suggestions [Re: Cab_Burge] #1059204
08/22/11 01:40 PM
08/22/11 01:40 PM
Joined: Nov 2004
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Sunnyvale, CA
Jeepmon Online content OP
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Quote:

Ohoi Crankshaft Company 4.250, 4.300 or 4.375 crank costs $700.00 plus shipping, a set of RPM or CAT Steel H beam rods costs $400.00, $600.00 t0 $1000.00 for custom pistons, $350.00 to balance it and your in the higher HP output ballpark, depending on what compression, camshaft and so on. Keep the heads that way they are now and shift it at or below 7000 RPM, deadly bracket combination that will go faster than what you have now




Thanks Cab

Re: My next build... need your suggestions [Re: Jeepmon] #1059205
08/22/11 01:59 PM
08/22/11 01:59 PM
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robin hood country
deaks Offline
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You have a nice looking car, that runs pretty good numbers now, just have the heads ported and fit a bit bigger cam, that will probably pick you up another 3/10.
Mick


69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36
Re: My next build... need your suggestions [Re: deaks] #1059206
08/22/11 05:22 PM
08/22/11 05:22 PM
Joined: Jan 2003
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Brookeville, Md
Mr.Yuck Offline
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not going to get 700-800 with those parts. Not w/o boost and that's to much compression for boost. I'd be concerned about re-using used aluminum rods...


[IMG]http://i66.tinypic.com/pui5j.jpg[/IMG]
Coming soon!!!!
Re: My next build... need your suggestions [Re: Mr.Yuck] #1059207
08/22/11 05:36 PM
08/22/11 05:36 PM
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Carson City, Nevada
Biginchmopar Offline
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I have most of the part to make a 511CID you can have the pistons noched for a good valve relief and be almost there. I'll send you the parts for $1300.00 Shipped

Crankshaft - 440 Source 4.250" stroke for a 400 block

Rods - Eagle 6.535" w/L19 bolts good to 1500HP

Pistons - Icon forged 4.375" bore (w/stock valve reliefs)

The pistons can be notched for the B-1 valve reliefs.

You would still have a pretty good budget left for the small things.


Re: My next build... need your suggestions [Re: Biginchmopar] #1059208
08/23/11 01:04 AM
08/23/11 01:04 AM
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Las Vegas
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Don the one thing you need to keep in mind is you need a custom piston period. There is not a shelf piston for a B1. However you can if they are still in good shape resue the current piston and go to a 4.25 stroke and new rod anbd have that solved. It does not have to be a break the bacnk thing. If those pistons are good that will save you some $$

IMO as suggested port the heads, freshen up the lower end throw a cam at it and let her eat. Otherwise open the wallet and do it once...BTW my little Valiant motor was a 511 with ported originals and it went 9.0's at 150 at 3470lbs with NO fancy parts at all.

Re: My next build... need your suggestions [Re: Al_Alguire] #1059209
08/23/11 01:20 AM
08/23/11 01:20 AM
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Sunnyvale, CA
Jeepmon Online content OP
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Bob... I sent ya a PM..

I still have a long month before the motor comes out of the car, in that time I plan on doing a whole bunch of reading and learning to do..

Thanks for everyones suggestions and advise, feel free to offer more...

Re: My next build... need your suggestions [Re: Jeepmon] #1059210
08/23/11 01:34 AM
08/23/11 01:34 AM
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Las Vegas
Al_Alguire Offline
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I know where there is a set of nicely ported Indy -1 heads with nice rockers and an intake Makes finding deals on pistons easier

Re: My next build... need your suggestions [Re: Jeepmon] #1059211
08/23/11 03:19 AM
08/23/11 03:19 AM
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SoCal
Brian Hafliger Offline
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Quote:

The motor will be coming out real soon and it'll be time to upgrade the HP and make it a reliable and predictable bracket motor...

What we have to work with is a 400 block that has been bored and stroked to 451..
B1 Originals (not ported)
Intake and 1050 Dominator..

Stroker crank (unknown make/age)
13:1 pistons (unknown make/age)
Aluminum rods (unknown make/age)
Aluminum mains (unknown make/age)
Comp roller lifters
small Comp Cam

My goal is 750-800ish HP and the total budget is in the neighborhood of $4000-ish, with me doing the final assembly..

What are your recommendations?




If you look at GBob's build that we did, except optimise the camshaft and more porting you'll be right at 800HP with minimal $$ spent.
Sell all that stuff, and go with the Victor MW heads IMO. B1's are like Hemis budget wise. Not so much of a budget deal.
Go with a 4.25 crank if you want after you sell those parts. I would strongly advise going to a different block...soooooo much piece of mind!

Good luck, have fun!

I hope to have my car at the track by the end of the year.
Brian


Brian Hafliger
Re: My next build... need your suggestions [Re: Jeepmon] #1059212
08/23/11 03:37 AM
08/23/11 03:37 AM
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Renton Wa
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topfueldart Offline
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IMHO, the shortblock is basically un-sellable as you describe it, at least to me anyways, unless your willing to virtually give it away. You've got good heads as is, Id personally spend a bit more than the amount you'd hoped and build a big shortblock with an aftermarket block that will last a long long time at 800+, then worry about having the heads ported/more cam in a year or 3 if necessary... If it goes mid-bottom 9's with a 540' or 572' with stockish B1's and a mild cam I bet you'll reap the benefits of easier maintenance, and room for growth in the future. But I always tend to build for the future, much more than the present.


11.48 @ 120 with a 1.80 60' 318, stock 1.88 heads, stock 904, Pump Gas, 13 lbs of boost.

9.94 @ 134, 318 on pump gas, 14 lbs w/ Eddies, transbrake 727, 3600 lbs, 3.54 gear and 28's.
Re: My next build... need your suggestions [Re: Al_Alguire] #1059213
08/23/11 08:58 AM
08/23/11 08:58 AM
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Quote:

...if they are still in good shape resue the current piston and go to a 4.25 stroke and new rod anbd have that solved...If those pistons are good that will save you some $$




I agree. I also think with the masses either opt for the -1's or MW Victors and sell the B1 origs. Gotta consider headers into your budget too, these more common heads use common headers. This will achieve your first expressed goal power-wise. I'm not so sure about meeting your budget though.

Re: My next build... need your suggestions [Re: Jeepmon] #1059214
08/23/11 11:44 AM
08/23/11 11:44 AM
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Frostbitefalls MN (Rocky&Bullw...
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If you trust the block, you could build a 512 to go with the B1 heads which should give you the lightest bob weight. Ideal situation is a center counter weight crank with the RB mains, machine the block to fit. That will let the block live longer. Then when it is time you can upgrade to a low deck after market block (KB?)with the same dimensions.
That should give you a torque peak around 6200 rpm and allow a shift point at or below 7200 rpm to help with the life of the motor. Converter will need to be loose enough to flash to 6500 in bad air, to make it consistent if you plan on bracket racing. No matter which way you go, the budget will have to increase IMHO. If you choose to stay with a MW port head, it limits you to around 8.80 at 3,000 lbs under IDEAL circumstances.
What ever you chose, be sure the way you go will have room to grow to your ultimate goal years down the road. My goal was to be able to run super comp, but the heads and weight of the car don't allow me to get competitive. If I set up the chassis to cut a light, I don't have the Hp to go 8.90 in the heat. If I set up the chassis for best ET, reaction times suffer and my lights will be poor. So the long term game plan is pretty important!
Maybe a post on your ultimate goal for the long term is in order, or we could look that over here.


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: My next build... need your suggestions [Re: gregsdart] #1059215
08/23/11 09:12 PM
08/23/11 09:12 PM
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Sunnyvale, CA
Jeepmon Online content OP
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Question for you all....

Given the two options I'm about to list.. which would be a better combination?

Freshen up existing short block with new rods, reuse existing pistons if possible, max port and valve job on the B1's and then match it with an appropriate sized cam??

or

Increase the CID to a 511/512 stroker, using existing pistons if possible, leave the B1's alone in stock ootb condition and then match it with an appropriate sized cam??

Re: My next build... need your suggestions [Re: Jeepmon] #1059216
08/23/11 09:15 PM
08/23/11 09:15 PM
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Las Vegas
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Bigger is better...HOWEVER OOTB B1 originals really need some massaging to work well. If you simply put them together with the supplied parts and bolt them on you are doing yourself an injustice. With a little bowl work and GOOD valve job they respond well...just sayin

Re: My next build... need your suggestions [Re: Al_Alguire] #1059217
08/24/11 03:58 AM
08/24/11 03:58 AM
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Arizona
Chris'sBarracuda Offline
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What Al Said.. Except.. 521" 4.390 Bore x 4.310 stroke. 6.635 rod..


Chris..

Re: My next build... need your suggestions [Re: Jeepmon] #1059218
08/24/11 08:20 AM
08/24/11 08:20 AM
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Frostbitefalls MN (Rocky&Bullw...
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Option two, with new pistons , bowl and valve job to wake up the heads, and at least 499 cubes. Best deal is 512 4.375 bore 4.25 stroke. My suggestion of a center counter weight crank is only if you can swing it someway cheap. New cranks done that way are not cheap, but a great addition if you can find one used. B1KEN ran a 511/b1 low deck combo(not a special crank as i recall) for years, in supergas with good results. Look up his fastest car ET, i think he was running low eights in a light car.
Found it-

8.178@ 167.12, 1.139 60', B1 Ken, '88 T-Bird, 2430#, 511 B-1 w/ Glide

Last edited by gregsdart; 08/24/11 08:23 AM.

8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: My next build... need your suggestions [Re: gregsdart] #1059219
08/25/11 01:42 PM
08/25/11 01:42 PM
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Jeepmon Online content OP
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How important is a girdle and half fill on the 400 blocks (at/around the 800 HP level)?

Last edited by Jeepmon; 08/25/11 01:48 PM.
Re: My next build... need your suggestions [Re: Jeepmon] #1059220
08/25/11 09:31 PM
08/25/11 09:31 PM
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Al_Alguire Offline
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Well filling the block is great provided it HAS NOT beenmachined already. IMO it is a very good idea to ad some stability to the bores. Some of these block can be really thin on the thrusts. The girdle, iMO is debatable. Dont think it will hurt much but not sure how much they halp. I have run low decks with decent power and just done a couple of things. One is aluminum caps and rods. Next keep the bobweight as light as you can, how light well that depends on application. Lastly keep the thing from detonating and it will give you many years of happy service at 800+- hp..

Oh yeah let the flaming begin

Oh yeah an aftermarket block does not necessarily mean no cap walk...Been there done that, ask Greg I think he will concur.

Re: My next build... need your suggestions [Re: Al_Alguire] #1059221
08/25/11 09:51 PM
08/25/11 09:51 PM
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Oh yeah an aftermarket block does not necessarily mean no cap walk...Been there done that, ask Greg I think he will concur.

oh no he didnt lol

Last edited by earthmover; 08/25/11 09:52 PM.
Re: My next build... need your suggestions [Re: Al_Alguire] #1059222
08/25/11 10:57 PM
08/25/11 10:57 PM
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Arizona
Chris'sBarracuda Offline
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Quote:

Well filling the block is great provided it HAS NOT been machined already. IMO it is a very good idea to ad some stability to the bores. Some of these block can be really thin on the thrusts. The girdle, IMO is debatable. Don't think it will hurt much but not sure how much they help. I have run low decks with decent power and just done a couple of things. One is aluminum caps and rods. Next keep the bob weight as light as you can, how light well that depends on application. Lastly keep the thing from detonating and it will give you many years of happy service at 800+- hp..

Oh yeah let the flaming begin

Oh yeah an aftermarket block does not necessarily mean no cap walk...Been there done that, ask Greg I think he will concur.





I've been around Geckers low deck B1 builds for forever, and all he used was aluminum caps with studs..

Trust me, He abuses his stuff..

His last 521" made 900hp+ @ 7300, and was still climbing.

400 block filled, aluminum caps, aluminum rods..

As I said before, 4.390 x 4.310 = 521"..


Chris..

Re: My next build... need your suggestions [Re: Chris'sBarracuda] #1059223
08/26/11 01:21 PM
08/26/11 01:21 PM
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Sunnyvale, CA
Jeepmon Online content OP
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Quote:


As I said before, 4.390 x 4.310 = 521"..


Chris..





I dont mind getting a 4.310 crank, but unless I'm making a big mistake, I'd like to save a few bucks and re-use my existing 4.375 pistons.. if possible

Re: My next build... need your suggestions [Re: Jeepmon] #1059224
08/26/11 02:41 PM
08/26/11 02:41 PM
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Ambridge, Pa.
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rickraw Offline
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it cost alot to go fast. u only live once, spend ur cash on good quality parts & have fun.

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