How strong are the 5.0 HO rods?

Nitrous Al · 07-03-2003, 09:22 PM

If I have the rods shot peened and assembled with ARP bolts, how much hp can they handle?

TMASTER · 07-04-2003, 04:58 PM

For a 306 right? How much HP are you wanting?

Nitrous Al · 07-04-2003, 11:17 PM

Yes, their for a 306 and I'd like to make around 400 hp.

TMASTER · 07-06-2003, 06:24 PM

400hp at the flywheel? or wheels? And Are you going to use all motor, or are you going to spray, or a supercharger?

If your using factory rods, that havent failed over many years of use, you no theres no defects in them. I would say they could hold 350 HP at the flywheel no problem. I would ask a machine shop, for advise that builds them all day long, sence no one else has replied but me

Spraying is hard on motors, i wouldnt spray to 400Hp on stock rods. stop me if im wrong anyone

86GT · 07-06-2003, 10:19 PM

I've sprayed a 150 shot and had ported E'brocks, RPM intake and a F-303 cam on a stock bottom end. When I did a rebuild I found that the rods, crank and pistons were fine. The key to keeping parts alive is maintenance and good insurance such as ARP bolts, good bearings and oil pressure.

bottlebaby91 · 07-07-2003, 12:07 AM

Im pushing out about 475-500 on spray at the wheels on stock crank and rods. The block will split b4 the rods or crank will ever fail. I have see many stock bottom end cars push out well over 425hp at the wheels under boost and not break. The number one things had already been said to keeping a motor last long, good bearings and good maintnance.

Nitrous Al · 07-07-2003, 09:52 PM

I'm going to put in new bearings and piston rings, but I can pick up a set of rods for under $50. I wanted to put larger ARP bolts in the connecting rods.

tarmon8r · 07-07-2003, 10:39 PM

my machinist told me that stock windsor rods were good for 400 hp with ARP bolts.

Nitrous Al · 07-11-2003, 08:11 PM

I'm going to need an aftermarket con rod. I also want to shoot a 150 hp nitrous shot occasionally. Any recommendations?

Shaggy · 07-12-2003, 11:21 AM

What block are you going to be running? If it is the stock or sportsman block then a properly shot peen and stress relieved stock rod with ARP's will hole more then the block will. The only reason to really change at that point is because you are going to a floating piston.

07-03-2003, 09:22 PM	#1
Nitrous Al Registered Member Join Date: May 2000 Location: Everett, MA Posts: 417	How strong are the 5.0 HO rods? If I have the rods shot peened and assembled with ARP bolts, how much hp can they handle? __________________ Nitrous Al

07-04-2003, 04:58 PM	#2
TMASTER Registered Member Join Date: Sep 2002 Location: TEXAS Posts: 161	hmmm For a 306 right? How much HP are you wanting?

07-04-2003, 11:17 PM	#3
Nitrous Al Registered Member Join Date: May 2000 Location: Everett, MA Posts: 417	Yes, their for a 306 and I'd like to make around 400 hp. __________________ Nitrous Al

07-06-2003, 10:19 PM	#5
86GT Sniffed too much n20 Join Date: Oct 1998 Location: Ont, Canada Posts: 1,018	I've sprayed a 150 shot and had ported E'brocks, RPM intake and a F-303 cam on a stock bottom end. When I did a rebuild I found that the rods, crank and pistons were fine. The key to keeping parts alive is maintenance and good insurance such as ARP bolts, good bearings and oil pressure. __________________ 2002 Windsor Weekend Q16 Qualifier

07-07-2003, 09:52 PM	#7
Nitrous Al Registered Member Join Date: May 2000 Location: Everett, MA Posts: 417	I'm going to put in new bearings and piston rings, but I can pick up a set of rods for under $50. I wanted to put larger ARP bolts in the connecting rods. __________________ Nitrous Al

07-06-2003, 06:24 PM	#4
TMASTER Registered Member Join Date: Sep 2002 Location: TEXAS Posts: 161	400hp at the flywheel? or wheels? And Are you going to use all motor, or are you going to spray, or a supercharger? If your using factory rods, that havent failed over many years of use, you no theres no defects in them. I would say they could hold 350 HP at the flywheel no problem. I would ask a machine shop, for advise that builds them all day long, sence no one else has replied but me Spraying is hard on motors, i wouldnt spray to 400Hp on stock rods. stop me if im wrong anyone

07-07-2003, 12:07 AM	#6
bottlebaby91 Registered Member Join Date: Nov 2002 Posts: 141	Im pushing out about 475-500 on spray at the wheels on stock crank and rods. The block will split b4 the rods or crank will ever fail. I have see many stock bottom end cars push out well over 425hp at the wheels under boost and not break. The number one things had already been said to keeping a motor last long, good bearings and good maintnance.

07-07-2003, 10:39 PM	#8
tarmon8r Registered Member Join Date: Jun 2002 Location: manassas, va Posts: 186	my machinist told me that stock windsor rods were good for 400 hp with ARP bolts. __________________ 1983 mustang, 393 cubic inch stroker small block, victor jr heads and intake, gold race 1.6 roller rockers. comp cam 304, 244@ .050. .576" hydralic retro roller cam,lunati rods. block was o-ringed,10:1 forged pistons, speed pro fit fit rings, clevite bearings,msd distributor and igniton,be cool huge radiator, black lite electric fan, march underdrive pulleys, mildon deep sump oil pan, mac 1 3.4" long tube headers, 3" dr gas x-pipe and mac exhaust,ARP bolts. car weighs 2900 lbs w/out driver, sub frames, weld wheels, mickey thompson sportsman pro 26 x 10.5 x 15's,#8 fuel line steel braided

07-11-2003, 08:11 PM	#9
Nitrous Al Registered Member Join Date: May 2000 Location: Everett, MA Posts: 417	I'm going to need an aftermarket con rod. I also want to shoot a 150 hp nitrous shot occasionally. Any recommendations? __________________ Nitrous Al

07-12-2003, 11:21 AM	#10
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	What block are you going to be running? If it is the stock or sportsman block then a properly shot peen and stress relieved stock rod with ARP's will hole more then the block will. The only reason to really change at that point is because you are going to a floating piston. __________________ A good plan, violently executed now, is better than a perfect plan next week. George S. Patton, General (1885-1945)

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