Sbc GM connecting rods

Bob F · 12-11-2022, 02:47 PM

I’ve a set of X rods with a set of trw 2304-030 mounted on them.
Are they a better option than a China I beam for a 7000 rpm Engine?

richie 2 · 12-12-2022, 02:49 PM

imo any stock rod @ 7k is risky...thats a heavy piston too. early thick X rods r much better than late model skinny beam units....NO on the china stuff @ that rpm.

Tim H · 12-12-2022, 03:30 PM

The problem with any "used" con. rods regardless of origin is just how many cycles have they already endured ? Kind of a fear of the unknown concept on a very critical internal component.

Greg Reimer 7376 · 12-12-2022, 07:36 PM

It's been five or so years since I've built an engine. What is the good setup these days for a large journal SBC 327 or 350 that is a good piece without a questionable point of origin? Brand name, part number, etc.That's for a stocker motor with a good light piston and pin.

Glenn Briglio · 12-12-2022, 10:58 PM

Quote:

Originally Posted by Greg Reimer 7376

It's been five or so years since I've built an engine. What is the good setup these days for a large journal SBC 327 or 350 that is a good piece without a questionable point of origin? Brand name, part number, etc.That's for a stocker motor with a good light piston and pin.

Can’t go wrong with a Manley I beam rod.

Mike Pearson · 12-13-2022, 12:55 PM

I have both Manley and Crower both have been good.

coupemerc · 12-13-2022, 05:25 PM

I am going with Molnar Technologies for my present build. Tom Molnar has been great to work with.

SSDiv6 · 12-13-2022, 09:42 PM

Quote:

Originally Posted by coupemerc

I am going with Molnar Technologies for my present build. Tom Molnar has been great to work with.

The approved Molnar rods for the Gen 1 SBC for Stock and Super Stock class, will clear a 55mm cam without notching the connecting rods.

12-11-2022, 02:47 PM	#1
Bob F Junior Member Join Date: Sep 2007 Location: Bucks Co Pa Posts: 56 Likes: 16 Liked 14 Times in 10 Posts	Sbc GM connecting rods I’ve a set of X rods with a set of trw 2304-030 mounted on them. Are they a better option than a China I beam for a 7000 rpm Engine?

12-12-2022, 02:49 PM	#2
richie 2 Senior Member Join Date: Feb 2009 Posts: 918 Likes: 325 Liked 158 Times in 73 Posts	Re: Sbc GM connecting rods imo any stock rod @ 7k is risky...thats a heavy piston too. early thick X rods r much better than late model skinny beam units....NO on the china stuff @ that rpm.

12-12-2022, 03:30 PM	#3
Tim H VIP Member Join Date: Jan 2007 Posts: 1,011 Likes: 907 Liked 432 Times in 143 Posts	Re: Sbc GM connecting rods The problem with any "used" con. rods regardless of origin is just how many cycles have they already endured ? Kind of a fear of the unknown concept on a very critical internal component.

12-12-2022, 07:36 PM	#4
Greg Reimer 7376 VIP Member Join Date: Nov 2008 Location: Glendora,Calif. Posts: 1,114 Likes: 165 Liked 654 Times in 209 Posts	Re: Sbc GM connecting rods It's been five or so years since I've built an engine. What is the good setup these days for a large journal SBC 327 or 350 that is a good piece without a questionable point of origin? Brand name, part number, etc.That's for a stocker motor with a good light piston and pin.

12-13-2022, 12:55 PM	#6
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,324 Likes: 547 Liked 1,652 Times in 505 Posts	Re: Sbc GM connecting rods I have both Manley and Crower both have been good. __________________ Mike Pearson 2485 SS

12-13-2022, 05:25 PM	#7
coupemerc Junior Member Join Date: Dec 2020 Location: Milford Massachusetts Posts: 5 Likes: 57 Liked 1 Time in 1 Post	Re: Sbc GM connecting rods I am going with Molnar Technologies for my present build. Tom Molnar has been great to work with.