Alternative 200 six connecting rod

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pmuller9
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Alternative 200 six connecting rod

Post #1 by pmuller9 » Fri Feb 16, 2018 10:29 pm

We had a joint effort (I don't mean anyone was smoking anything) looking for an aftermarket rod for the 200 and drag-200stang found that the Toyota 1JZ rod would be a good candidate.

4.931" center to center
2.166" BE bore for the 2.047" crank pin
1.020" BE Width
1.00 PE width.
22mm pin
Comes in sets of six.

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chad
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Re: Alternative 200 six connecting rod

Post #2 by chad » Fri Feb 16, 2018 10:47 pm

"good" according to what?
exact length
to get closer - as an alternative to machining a zero deck
beefier
lighter
less expensive
etc
?
Oh, wait, I C U have some specs...I thought that wuz yer sig...
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

pmuller9
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Re: Alternative aftermarket 200 six connecting rod

Post #3 by pmuller9 » Fri Feb 16, 2018 10:54 pm

You're right.
I should have added that we were looking for a stronger rod that would hold up to turbocharging or any other extreme high performance application in the form of aftermarket 4340 steel "H" beams
The other consideration is having a performance rod that doesn't cost much more than than resizing the stock rod with ARP bolts, polished beams and shot peening.

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rocklord
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Re: Alternative aftermarket 200 six connecting rod

Post #4 by rocklord » Fri Feb 16, 2018 11:12 pm

pmuller9 wrote:You're right.
I should have added that we were looking for a stronger rod that would hold up to turbocharging or any other extreme high performance application in the form of aftermarket 4340 steel "H" beams
The other consideration is having a performance rod that doesn't cost much more than than resizing the stock rod with ARP bolts, polished beams and shot peening.


Like these:
https://www.ebay.com/itm/Connecting-Rod ... 1Q&vxp=mtr
Dan

Currently Own
1965 Mustang, 200CID, 3Spd
1964 Corvair Coupe, 164CID, 140HP, 4Spd
1961 Corvair Lakewood wagon, 145CID, 80HP, 2Spd Powerglide Auto.
2017 BMW X3, 3.0L Dual Turbo, 300HP, 8-Spd Auto

pmuller9
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Re: Alternative 200 six connecting rod

Post #5 by pmuller9 » Fri Feb 16, 2018 11:15 pm

Yep, like those and several others that are available.
Obviously the rods would require custom forged pistons but a person would most likely be going that route anyway for performance build.

Does anyone know what the big end width is for the 200 connecting rod?

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chad
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Re: Alternative 200 six connecting rod

Post #6 by chad » Sat Feb 17, 2018 12:50 am

Thanks!
is there a place here to assemble these 'alternatives" & their benefits? may B even prt #s, prices and companies?
A catalogue of sorts (for Matt to supply us or just as an access point)... :hmmm:
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

pmuller9
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Re: Alternative 200 six connecting rod

Post #7 by pmuller9 » Sat Feb 17, 2018 2:03 pm

Benefits;
The stock rod is 4.715" with a rod length to stroke ratio of 1.5
The aftermarket "H" beam rod is 4.931" which increases the rod length to stroke ratio to 1.58.
The piston side loading is decreased which is very important to those doing forced induction or high rpm engines.
The longer rod postions the piston pin at a 1.31" CH which is plenty room for rings.

The stock rod or "I" beams in general have a tendancy to bend sideways just below the small end especially if detenation is encounted.
Case in point: During a tuning session on our blown alky engine the engine went lean and bent 6 out of 8 Callies Ultra XD "I" beam rods that have angle arches from the small end to the beam to prevent bending. We changed to a different design and never had the problem again even under detonation.
The "H" beams handle high torque loads better.
I'm not really sure why I'm doing this paragragh when there is no real comparision between the stock rod and a 4340 steel "H" beam rod.

If you google "Toyota 1JZGTE connecting rods" you will find most of the brands with prices ranging from $300 to $1800.
The rod sets that are under $300 do not come with rod bolts so the buyer can select between the different grades of ARP bolts.
The cost of polishing the beam, shot peening and resizing the stock rod with ARP bolts is close to the cost of the low price aftermarket "H" beam rod.

If you have a 250 six then the 6.135" BBC 2.100" journal rod has similar benefits.

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bubba22349
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Re: Alternative 200 six connecting rod

Post #8 by bubba22349 » Sat Feb 17, 2018 2:50 pm

:thumbup: great info maybe we should start a few sticky’s for different engine build parts combos. :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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Re: Alternative 200 six connecting rod

Post #9 by pmuller9 » Sat Feb 17, 2018 3:28 pm

Does someone know the big end width of the stock 200 rod?

67Straightsix
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Re: Alternative 200 six connecting rod

Post #10 by 67Straightsix » Sat Feb 17, 2018 4:40 pm

pmuller9 wrote:Does someone know the big end width of the stock 200 rod?


The big end width measures .992".

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Re: Alternative 200 six connecting rod

Post #11 by pmuller9 » Mon Feb 26, 2018 10:03 am

67Straightsix wrote:The big end width measures .992".

Thanks 67Straightsix
Just needed to be sure.

The aftermarket rods will fit the crankshaft by either taking .014" off each side of the rod's big end or off of each cheek of the crank throw.
The crank rod journal gets turned down to 2.047" with a finished diameter for the correct bearing clearance.

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bubba22349
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Re: Alternative 200 six connecting rod

Post #12 by bubba22349 » Mon Feb 26, 2018 8:37 pm

And maybe also offset grinding the crank throws for a small gain in stroke while your at it! :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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cr_bobcat
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Re: Alternative 200 six connecting rod

Post #13 by cr_bobcat » Tue Mar 13, 2018 2:39 pm

Dagnabbit....eBay just ran a 20% off deal a few days ago. If I were on top of things I would have snagged a set... :bang:
Block: Stock C8 Block/pistons, C9-M head, 1.75/1.5 valves, dual spring, 1.65 RAU Rockers, port divider, direct mount Holley 4412-500, HEI w/20* advance, manifold vac, dual-out Arvinode exhaust, Clay Smith 264/274 110* installed w/ 4* advance, adjustable dual chain timing, C4 w/ shift kit, 3.20 (TBC) rear ratio, 9.44 SCR / 7.97 DCR

Build that Six with parts from http://www.vintageinlines.com

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Re: Alternative 200 six connecting rod

Post #14 by cr_bobcat » Wed Jul 18, 2018 11:07 am

So has there been any movement here on someone trying one of these alternatives yet? Just curious.
Block: Stock C8 Block/pistons, C9-M head, 1.75/1.5 valves, dual spring, 1.65 RAU Rockers, port divider, direct mount Holley 4412-500, HEI w/20* advance, manifold vac, dual-out Arvinode exhaust, Clay Smith 264/274 110* installed w/ 4* advance, adjustable dual chain timing, C4 w/ shift kit, 3.20 (TBC) rear ratio, 9.44 SCR / 7.97 DCR

Build that Six with parts from http://www.vintageinlines.com

66contriviad-coupe
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Re: Alternative 200 six connecting rod

Post #15 by 66contriviad-coupe » Wed Jul 18, 2018 3:30 pm

cr_bobcat wrote:Dagnabbit....eBay just ran a 20% off deal a few days ago. If I were on top of things I would have snagged a set... :bang:


I actually did pick up a set during one of those sales. Got the discount plus had a gift card! Figured it was worth a shot for the amount of actual cash I spent...

I read a ton about that company maxpeedingrods (well, all that I could find...pretty scarce on information). An MG site had some dude that did some testing on them and said they are what they claim to be as far as he could tell (including verification that the bolts are genuine ARP...can find the link if anyone wants). Some claim they are the factory for eagle. Was pretty wary going in because of some stuff my dad's friends went through with Chinese made Chevy heads.

They came in last night and stunk the house up. Haven't weighed them...but the rods look nice enough. I'll take them with the engine to the machine shop when I get my head milled and see what they think. Probably going to use Clay Smith being they ain't that far away and were awesome over the phone.

Just gotta coordinate a trip in my wife's current car since I tore apart this mustang :lol:
1966 Mustang Coupe
- [200 small log, Holley 1940, pertronix]

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