141 rods, what are the differences

**mrcrsr** · 12-22-2009, 06:59 AM

what is different between a 141 rod used in a fishing motor vs in a hi perf application(ie 260,280), i know the sps bolts and some clearancing for them, is there anything else?

**Jay Smith** · 12-22-2009, 07:58 AM

Charlie,
I was told the Hi Per rod was heat treated on the top area but I'd have to flag

on that , I have used the Pro Max style rods ( after the caps were clearenced and SPS rod bolts attached ) in some VERY modified engines with zero issues..

Just my observations...
Happy Holidays,
Jay

**mrcrsr** · 12-22-2009, 08:13 AM

Originally Posted by Jay Smith

Charlie,
I was told the Hi Per rod was heat treated on the top area but I'd have to flag

on that , I have used the Pro Max style rods ( after the caps were clearenced and SPS rod bolts attached ) in some VERY modified engines with zero issues..

Just my observations...
Happy Holidays,
Jay

thanks jay, and merry christmas, i'll be waiting on your call, thanks, charlie

**Jay Smith** · 12-22-2009, 02:20 PM

Part on the way Charlie Tracking 1Z 9WR 670 03 9860 2444

Merry Christmas,
Jay

**OWENS1** · 12-27-2009, 06:50 PM

So a fishing motor small rod be ok to use in a 10K rpm engine?

**Jay Smith** · 12-27-2009, 10:24 PM

Do it all the time with the cap altered for the SPS or ARP using the 3/8th inch 12 point rod bolt..BUT I do not suggest the "saw cut" type top of the small end of the rod for oiling they are weak on the top..

My .02

Jay

**us1** · 12-28-2009, 09:25 PM

Originally Posted by OWENS1

So a fishing motor small rod be ok to use in a 10K rpm engine?

Yeah, I do it all the time too. There is nothing wrong with the fishing motor 141 rods. Like Jay said just clearance them for the SVS bolts and you're good to go.

**OWENS1** · 12-29-2009, 08:29 AM

What is the part# for the 3/8 head sps bolts?

**Jay Smith** · 12-29-2009, 09:43 AM

Mercury SPS part number is 10-848475 for the 41 rod and 10-91995 for the 5250 rod.. VERY EXPENSIVE like $20.00 a bolt also Pro Marine is selling some nice ARP rod bolt cheaper and they are as strong as the SPS I'm told..

Jay

**us1** · 12-29-2009, 12:03 PM

Jay, have you tried any of those ProMarine SPS rod bolts yourself yet.

**Jay Smith** · 12-29-2009, 12:18 PM

I bought several sets of the ARP bolts from Pro Marine John, I hear they are at a 300,000 tensel strength to break verses the SPS 243,000 ...I hear even Mercury Hi Per rods are coming with ARP rod bolts to replace the SRS ones.. I tore down an 2005 F1 engine last week with 5250 rods and they were fitted with the ARP bolts..

Jay