Previous Thread
Next Thread
Print Thread
451 rod weights ?? #1643730
07/07/14 11:38 PM
07/07/14 11:38 PM
Joined: Sep 2005
Posts: 12,481
Chino Valley
RodStRace Offline OP
I Live Here
RodStRace  Offline OP
I Live Here

Joined: Sep 2005
Posts: 12,481
Chino Valley
So I've got a 451 motor apart for many years.
I decided I can't trust the old aluminum rods due to bearing wear and unknown length of service.
So I'd like to find steel replacements of a similar weight.

Usage will be either back into the race car (71 cuda, 2600#, 451/PG W/5K stall converter, ran 10.70s with ported 906s, roller cam and single 4, showed a solid 500 HP on a chassis dyno) which requires a good quality rod, OR it will go into the A-100 with a milder cam for mainly street use, which will not see as much abuse.

The rods in it are BME aluminum marked 426, length is 6.76", .990" pin and the weight is 770 grams with bearing (yeah, I should have removed them to weigh).

The pistons a Venolia and are light too (not big heavy TRWs)

I see that Eagle should be avoided, so the question is, what brand rods would you suggest and will any of them be close to the same weight?

Scat
$576 at Summitt SCA-6676099A
$481 at Summitt SCA-6676099 Similar price at Jegs
Both the right length and pin size, but no weights

440 Source
6760.990.2375.2000-H $574.95
The right length and pin size, but no weights

Campbell offers

K1
dh6760aurb8-a $606.10
440 RB length rods with ARP2000 bolts, .990 pin size
no weights

Molnar
DH6760YTB8-A $548.13
No weight for this, but the 1.094 pin rod weighs 852 grams!

Moparts racing has
CAT
CRS-6760S RB 413/426W/440 850 grm. 6.76 .990 pin 429.95
Again, will require adding weight to the crank to balance!

Oh, and BME doesn't have a catalog I could find.
http://bmeltd.com/rods.htm
but the price list shows the 426 forging at 179 each jobber for "inventory rods". That's over 1400 bucks. Kind of tough to go that way, although it would certainly be overkill for my needs.

8201355-bearings.jpg (137 downloads)
Last edited by RodStRace; 07/07/14 11:57 PM.
Re: 451 rod weights ?? [Re: RodStRace] #1643731
07/08/14 01:00 PM
07/08/14 01:00 PM
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,157
Bend,OR USA
I placed a order yesterday with Tom Molnar for two sets of his BB Chevy 7.100 long rods for two of my bracket race stroker motors, 750+ HP. I'll let you know what I think of them when I get them, I looked at that the same type Ohio Crankshaft steel rods also Ohio says there rods forged H beam rods are good to 1000 HP I have bought and used tool steel 1.094 wrist pins to reduce the rotating weight


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 451 rod weights ?? [Re: Cab_Burge] #1643732
07/08/14 09:32 PM
07/08/14 09:32 PM
Joined: Sep 2005
Posts: 12,481
Chino Valley
RodStRace Offline OP
I Live Here
RodStRace  Offline OP
I Live Here

Joined: Sep 2005
Posts: 12,481
Chino Valley
Thanks cab!
I've got stock 440 big end size and the smaller pin, but any info will help.
I get the feeling that I won't be able to find a steel rod that light, which will require adding weight back into the crank for balancing.
I'm not pushing 1000 hp in this stock block, just enough to want good quality parts.







Powered by UBB.threads™ PHP Forum Software 7.7.1