141 rod mods

[Merc 2.5]

so when guys use the sps/arp 3/8ths head rod bolt in the 141 fishin rod , does the hole have to b drilled out and rethreaded along with clearance for head of bolt ?

Or is it just the head of bolt that needs mod and hole thread size the same?

[FORBESAUTO]

Just the clearance for the bolt head, threads the same

[tcrabtree]

Grind ya a 3/8" (1/4" Drive) 12pt socket down until it fits.

[Merc 2.5]

Grind ya a 3/8" (1/4" Drive) 12pt socket down until it fits.

What do the sps or arp bolts torgue to? 30-40? Will socket hold it?

[Merc 2.5]

1 more question. How much diffrence in promarine non tty bolts (torque to 30 and no 90) vs the sps or arp torque to 30?

[FORBESAUTO]

I use a snap on 1/4 in drive socket with a little mode on tip. Holds up well. But even with that depending on rod, most still need a little clearancing to get the socket to fit nice and flush to get a good torque

[tcrabtree]

What do the sps or arp bolts torgue to? 30-40? Will socket hold it?

30Ft lbs. Itll hold fine, I build quite a few motors & been using the same socket for years.

[FORBESAUTO]

Pic ain’t worth a hoot, the grindin on the end is just a taper so that it leaves some meat on socket but gives a little extra clearance near cap

[Merc 2.5]

Ok well im gonna go ahead and get the set for sale here and do whatever needs to use em

[Merc 2.5]

Will the 5250 bolt work for the 141s?

[DOC W]

no its longer . yes it fits but the threads are not in correct contact because they stick out the bottom

[Merc 2.5]

no its longer . yes it fits but the threads are not in correct contact because they stick out the bottom

Well damn

[DOC W]

RB2500-1 IF i remember right

[Merc 2.5]

RB2500-1 IF i remember right

Ya i see the blank is longer on bottom guide bolts. Thanks

[Dave S]

Clean threads real good...... red on bolt and hole......run in and out before tighting to #......Than the weak point is ya stick a piston and things break.... but the rod bolts are not the cause of carnage.