aluminum rods??????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

RED67 · 03-25-2003, 09:08 AM

what's yalls opinion on running manley aluminum rods on the street???it will be very limited use in 67 swb truck(maybe 1-3 hours a week) maybe drive it to the local track every once in a while....any opinion is prechated....thx red67

*Randy70C-10* · 03-25-2003, 10:51 AM

There great, if you're running an 800 horse engine. Stock rods will last forever in a street engine. I'm even running stock rods in my Model A (6 or 7 years so far) Shhhhh....don't tell anyone.

ckhd · 03-25-2003, 11:54 AM

Probably overkill, unless you have one heck of an engine, and I mean one HECK of an engine!

RED67 · 03-25-2003, 12:46 PM

the motor is a 468 w/steel crank internally balanced,aluminum rods,trw full dome pistons(12.8 to 1 comp)781 oval port heads cut for 2.19 valves,crane flat tappet w/650 lift,team g intake,w/ a 930 holley dominator,running through hooker super comps(2" inlet w/ 3.5 " exhaust)

*Randy70C-10* · 03-25-2003, 01:05 PM

As long as you're not running nitrous, the stock rods will be fine. If you do go with nitrous, I'd say use the Manleys.

RED67 · 03-25-2003, 02:44 PM

the motor(longblock balanced,ready to go) is already built w/ the aluminum rods in it...i'm just trying to get some feed back on whether aluminum rods will hold up on limited use or if i should go ahead and change them out for steel rods since the motor is already out....trying to save $$$$$$ new rods are about $300, someone to put them in is $400

Stroker · 03-25-2003, 07:30 PM

I have no first hand experience with aluminum rods but I know a few guys that have them in duel use cars. This is what they have told me. If the engine is driven fairly easy on the street and the RPMs at the track are held to about 7,200 rpm they feel comfortable with 10,000 mi inspections intervals. This was in a small block and I don't know specifically what rod they are using. They don't race full time maybe 30-40 passes a year. ....hope this helps ya some, Stroker

mikep · 03-25-2003, 08:33 PM

Ive used them in street engines back when good rods were hard to find at decent prices. Since good rods can be had for decent prices these days it doesnt make sense to use them on the street. Aluminum fatigues and work hardens and will end up cracking. Its just a question of WHEN that happens. It could be sooner or it could be later but it will happen eventually. Since a set of Scat I beam 4340 rods is under $300 it makes sense to go that way. My dad is running them in an 8-71 blown 468 that regularly sees 7000 rpm and is fully comfortable doing so. He could be using aluminum rods but then again he doesnt feel like tearing it down to see if his rods are cracking every few seasons.

bigjimzlll · 03-25-2003, 10:00 PM

aluminum rods on the street..not a good idea...aluminumrods will stretch and contract with stress and heat..at the track you can keep the engine routine standard..and as posted you need to inspect/replace quite frequently. With the nice combo you have listed, it would be a shame if a rod let go and trashed it.
Jim

sam's 72 · 03-26-2003, 12:42 AM

I agree with big, they move way too much for street use.
Sam

03-25-2003, 09:08 AM	#1
RED67 Forever Grateful Join Date: Mar 2001 Location: Forney,Texas Posts: 779	aluminum rods??????? what's yalls opinion on running manley aluminum rods on the street???it will be very limited use in 67 swb truck(maybe 1-3 hours a week) maybe drive it to the local track every once in a while....any opinion is prechated....thx red67 __________________ R.I.P Dad 04-07-42 - 05-27-09

03-25-2003, 11:54 AM	#3
ckhd Registered User Join Date: Oct 2000 Location: St. Johns, Arizona Posts: 2,660	Probably overkill, unless you have one heck of an engine, and I mean one HECK of an engine! __________________ my 2¢ - t.i.o.l.i. Bowen 1968 K20 fleet 1969 K10 swb fleet 1972 K10 Suburban 1972 C10 lwb step 1992 K1500 'burb 1995 K2500 'burb 1997 C1500 'burb 1999 K1500 2000 K1500 'burb Why do I own so many Suburbans?

03-25-2003, 12:46 PM	#4
RED67 Forever Grateful Join Date: Mar 2001 Location: Forney,Texas Posts: 779	the motor is a 468 w/steel crank internally balanced,aluminum rods,trw full dome pistons(12.8 to 1 comp)781 oval port heads cut for 2.19 valves,crane flat tappet w/650 lift,team g intake,w/ a 930 holley dominator,running through hooker super comps(2" inlet w/ 3.5 " exhaust) __________________ R.I.P Dad 04-07-42 - 05-27-09

03-25-2003, 02:44 PM	#6
RED67 Forever Grateful Join Date: Mar 2001 Location: Forney,Texas Posts: 779	the motor(longblock balanced,ready to go) is already built w/ the aluminum rods in it...i'm just trying to get some feed back on whether aluminum rods will hold up on limited use or if i should go ahead and change them out for steel rods since the motor is already out....trying to save $$$$$$ new rods are about $300, someone to put them in is $400 __________________ R.I.P Dad 04-07-42 - 05-27-09

03-25-2003, 07:30 PM	#7
Stroker Registered User Join Date: Mar 2001 Location: Moore, Ok Posts: 1,149	I have no first hand experience with aluminum rods but I know a few guys that have them in duel use cars. This is what they have told me. If the engine is driven fairly easy on the street and the RPMs at the track are held to about 7,200 rpm they feel comfortable with 10,000 mi inspections intervals. This was in a small block and I don't know specifically what rod they are using. They don't race full time maybe 30-40 passes a year. ....hope this helps ya some, Stroker __________________ 72 SWB parts and pieces Oklahoma

03-25-2003, 10:51 AM	#2
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	There great, if you're running an 800 horse engine. Stock rods will last forever in a street engine. I'm even running stock rods in my Model A (6 or 7 years so far) Shhhhh....don't tell anyone.

03-25-2003, 01:05 PM	#5
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	As long as you're not running nitrous, the stock rods will be fine. If you do go with nitrous, I'd say use the Manleys.

03-25-2003, 08:33 PM	#8
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	Ive used them in street engines back when good rods were hard to find at decent prices. Since good rods can be had for decent prices these days it doesnt make sense to use them on the street. Aluminum fatigues and work hardens and will end up cracking. Its just a question of WHEN that happens. It could be sooner or it could be later but it will happen eventually. Since a set of Scat I beam 4340 rods is under $300 it makes sense to go that way. My dad is running them in an 8-71 blown 468 that regularly sees 7000 rpm and is fully comfortable doing so. He could be using aluminum rods but then again he doesnt feel like tearing it down to see if his rods are cracking every few seasons. __________________ No truck :-(

03-25-2003, 10:00 PM	#9
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	aluminum rods on the street..not a good idea...aluminumrods will stretch and contract with stress and heat..at the track you can keep the engine routine standard..and as posted you need to inspect/replace quite frequently. With the nice combo you have listed, it would be a shame if a rod let go and trashed it. Jim __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

03-26-2003, 12:42 AM	#10
sam's 72 Senior Member Join Date: Nov 2001 Location: Pasadena, Texas, USA Posts: 1,005	I agree with big, they move way too much for street use. Sam __________________ 72 LWB chevy truck. Pasadena, Texas



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