CamaroX84

I have posted earlier messages about pistons and connecting rods. I forgot to ask though, how much horsepower/torque and how high of an RPM can the stock pistons and rods handle? Would I be ok on them with a cam, ported heads, headers, and a ported intake? Thanks.

ede

shouldn't have any problems. the weak link is the bolts. buy a set of arp rod bolts.

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-=ICON MOTORSPORTS=-
1st & 3rd

AlkyIROC

I'm sure my engine failed from a stock rod bolt finally letting go but all my performance results below were with a completely stock bottom end (short rod stroker) and cast pistons.

When it finally let go, it let go in a big way. Everything stayed inside the engine but very little was salvageable.

I was also shifting at 6400 rpm.

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Stephen's racing page

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
454 Big Block buildup now in progress for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car
91 454SS daily driver
95 Homebuilt Harley

Pat Hall

iTrader: (31)

Hmmmmm, sounds like I'll definitely factor a set of ARP Wave Loc rod bolts into the budget for my L98 rebuild!


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89RS w/350 TPI; 69RS/SS w/450 HP 350/Muncie 4-Speed "Too weird to live, too rare to die."

CamaroX84

Anybody else have any experience with stock pistons/rods/crank on a modified L98? What RPM should I not exceed? Thanks.

Guest

Out of those 3, the rods are the issue. I wouldnt wind it up much past 6000 on a stock bottom end. If you change the bolts and balance it, 6500 should be fine, 7000 is pushing your luck on stock rods.