Can the stock rotating assembly of a 351w support 6000 rpm?
- Thread starter SadbutTrue
- Start date
TireSmoknWindsr
Founding Member
Well I know it can handle it its just a matter of how long and most likely somewhat dependent on the year. Since I'd imagine the roller motors will hold up better to the high RPMs than the late 70s and such. I've spun my stock 302-2v in my '66 past 7000 before and kept it there for a brief period and it has held up great. I'd invest in for sure some good ARP bolts and such. Other things to hold it together would just be making a stronger rotating assembly. Some good strong forged rods, crank, etc.
well, the 302s and 289s rev better from what i hear due to more rev-happy bore/stroke ratio. i have a 69 block, im pretty sure the rotating assembly is stock styled
if you're goimg to try to push it to 6 grand consistently i would seriously consider investing in a main girdle, cat performance has some that are relatively inexpensive www.catpep.com
6 grand shouldn't be a problem. Now as tiresmokinwindsor said, it depends on how long it's gonna be spinnin that rpm. If your's has the early 351W rods with the square cut bolt faces, I'd rethink them. The later ones are much better. The rods are all forged, just some are better than others. I've spun stock 302 rods up to 7500 rpms with ARP bolts without a problem, but i'd be hesitant to do 6500 with stock early 351W rods with or without ARP bolts.
67GTCOUPE
Founding Member
No PROBLEMS!!!!
Just use ARP rod and main bolts.
I spin mine past 6000rpm all the time.
I have a 1996 roller motor.........it revs just like my 5.0 ho!!!!
Just use ARP rod and main bolts.
I spin mine past 6000rpm all the time.
I have a 1996 roller motor.........it revs just like my 5.0 ho!!!!
I had my shortblock blueprinted by DSS Racing. They installed ARP connectors throughout using studs on the main caps as well as their Girdle assembly. The fella that I spoke with said due to the inherrent strength of the 351W block (size of journals etc) and the way I had mine ordered it was good for an 8K redline. I figure I'm in good shape since my cam and intake will crap out before 6500.
chris txstang
New Member
I guess I forgot to ask anyone if it would be OK in mine. I have a 70's block with a cast 393 crank, stock rods and KB pistons. I do have ARP rod bolts and had it balanced. I have run it to around 6,500 several times, but not for longer than a few seconds.
Chris
Chris
Similar threads
