Re: Doing It Right The First Time
[Re: pittsburghracer]
#1372756
01/20/13 09:33 PM
01/20/13 09:33 PM
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Joined: Oct 2003
Posts: 1,409 Ont. Canada
10.90 Racer
super street
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super street
Joined: Oct 2003
Posts: 1,409
Ont. Canada
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Maybe someone knows how to make these type of rockers work under a small block stroker and a 557 or 590 lift purple shaft cam. Rpm range around 6800-7200. Hp maybe like 450 hp.
Econo W2 and a stroker, yor really going to have to mess that combination up to have it only make 450 HP using a Mopar cam is a good start to acheive that goal
Cab, Brock lives app one hour from me and I TRIED to point him in a direction that he could build a low maintenance engine on a budget that would run 10's. Pump gas, 6400-6500 rpm, 520-550 lift solid cam, his W2 heads and a good intake (I like the W2 Victor). Hopefully his chassis works well enough and a 5200-5500 convertor. In his 2800# car that combo should go 10.20's-10.50's
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I had to edit this to add that I also recommended using a H beem connecting rod instead of wasting money reconditioning stock rods.
If he changes rods will he not need a re-balance??? Good rod bolts and a re-size will work at that RPM......... What pistons?? how heavy are they??
I will NEVER recommend someone that is building a 10 second engine to use stock reconditioned rods. Why would you ever want to. Put a good rod in it an put the money that you would have spent on a junk set of rods toward the cost. That way the hardest part of the build is done. You can always port or change out the heads at a later date and not worry about the rods being able to take the added HP.
And a race build running 10's should be balanced by a machine shop, not a factory balance job.
Yes I agree it should not have the factory balance........ Stock rods in that combo are absolutely not an issue, but if you are going to balance and re-size the factory rods... the Chinese H beams are not much more money in the big picture........... I'm not convinced the Chinese rods are any better than a factory rod.........
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Re: Doing It Right The First Time
[Re: 10.90 Racer]
#1372757
01/20/13 09:39 PM
01/20/13 09:39 PM
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Joined: Jan 2003
Posts: 9,826 las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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If those are your heads...better take a good look at them... cause it looks like the shafts go through stands...they are not bolted to a pedestal...NOT Econo heads...
Tony
70 AARCuda Vitamin C 71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield) 71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas) 71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: Doing It Right The First Time
[Re: 70AARcuda]
#1372759
01/20/13 09:44 PM
01/20/13 09:44 PM
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Joined: Nov 2004
Posts: 1,745 Maryland
340_Dart
top fuel
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top fuel
Joined: Nov 2004
Posts: 1,745
Maryland
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If those are your heads...better take a good look at them... cause it looks like the shafts go through stands...they are not bolted to a pedestal...NOT Econo heads...
I thought i saw bolt on stands, which means they're a long valve race head with open chambers.
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Re: Doing It Right The First Time
[Re: 340_Dart]
#1372761
01/20/13 09:58 PM
01/20/13 09:58 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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If those are your heads...better take a good look at them... cause it looks like the shafts go through stands...they are not bolted to a pedestal...NOT Econo heads...
I thought i saw bolt on stands, which means they're a long valve race head with open chambers.
Yeah those are the race heads..... NOT the econo's the one set I have is the econo long valve but another set is the standard econo... which to my understanding has a different pedestal height and location
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Re: Doing It Right The First Time
[Re: MR_P_BODY]
#1372765
01/20/13 10:36 PM
01/20/13 10:36 PM
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Joined: Oct 2003
Posts: 1,409 Ont. Canada
10.90 Racer
super street
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super street
Joined: Oct 2003
Posts: 1,409
Ont. Canada
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Quote:
Yes I agree it should not have the factory balance........ Stock rods in that combo are absolutely not an issue, but if you are going to balance and re-size the factory rods... the Chinese H beams are not much more money in the big picture........... I'm not convinced the Chinese rods are any better than a factory rod.........
I'll take a H-beam over the factory rod any day... I put a new set of Viper rods(they are shot penned and magnafluxed before they go into the viper engines) in a 340...I tore one in half on my small block at 7500 rpm... I havent broke any Eagle H-beams yet at a much higher rpm(they are the older Eagles which to me were better quality.. but I cant say for fact)
That's interesting ......where did the rod break??? Did you upgrade the rod bolts?? I thought all factory rods were shot peened??
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Re: Doing It Right The First Time
[Re: MR_P_BODY]
#1372768
01/20/13 11:24 PM
01/20/13 11:24 PM
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Joined: Oct 2003
Posts: 1,409 Ont. Canada
10.90 Racer
super street
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super street
Joined: Oct 2003
Posts: 1,409
Ont. Canada
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Yes I agree it should not have the factory balance........ Stock rods in that combo are absolutely not an issue, but if you are going to balance and re-size the factory rods... the Chinese H beams are not much more money in the big picture........... I'm not convinced the Chinese rods are any better than a factory rod.........
I'll take a H-beam over the factory rod any day... I put a new set of Viper rods(they are shot penned and magnafluxed before they go into the viper engines) in a 340...I tore one in half on my small block at 7500 rpm... I havent broke any Eagle H-beams yet at a much higher rpm(they are the older Eagles which to me were better quality.. but I cant say for fact)
That's interesting ......where did the rod break??? Did you upgrade the rod bolts?? I thought all factory rods were shot peened??
Good bolts.. no, not all factory rods are shot penned and my rod was still bolted to the crank but the other end and chunks of the piston came out of the block... it trashed everything in that engine EDIT tore it in half right in the middle
Hmmmmmm I measured the cross section of a SB rod and compared it to a BB rod the cross section was very close..... making me think if it will survive in a 440 with 1000g pistons ........... it's a cake walk in a SB........
You never know, maybe something else went wrong........ That said I have H beams in my 408 and the good Manley's I Beams in my 360.
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Re: Doing It Right The First Time
[Re: Sb Valiant]
#1372770
01/21/13 10:42 AM
01/21/13 10:42 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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LOL I was told they were Econo W-2's. Alot of this confusion I get is off the parts we even have! If they are really the race W-2's that would be cool! I started working on the heads and I'll post some before and after pics up maybe later tonight!
Its easy to tell the difference... the race head has a flat pad the rocker support bolts to... the econo had a tall stand with the 1/2 round cut in it for the rocker shaft to mount on
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