Roller rockers
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Supreme Member
iTrader: (1)
Joined: Mar 2001
Posts: 3,245
Likes: 1
From: Medford, Oregon
Car: 1989 Iroc Z L98
Roller rockers
I am buying a 350HO crate engine with 330 horsepower, 380 torque. how much hp /torque would be added by swapping the 1.5 rockers with 1.6's. thanks
Member
Joined: Jul 2001
Posts: 220
Likes: 0
From: milwaukee, WI
hard to say, but just going from stamped steel to rollers is usually worth 10 to 25, dependeing on the engine and if they are roller tip or full roller on the tip and fulcrum. Lighter chromoly or aluminum usually helps too. upping the lift with 1.6 will slightly increase friction, but the vortec heads should be able to take full advantage of the increased lift, how much it'll do, i couldn't say.
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'84 Berlinetta, LG4, 700R-4, starwars interior, no major mods yet
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'84 Berlinetta, LG4, 700R-4, starwars interior, no major mods yet
Senior Member
Joined: May 2000
Posts: 679
Likes: 0
From: Colorado Springs
Car: 1991 Super Sport
Engine: 388 ci
Transmission: TH-700R4, 3500 Stall
Go with Harland Sharp, you cannot go wrong with them, there 1.6 RR's are the best for the money!
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1992 Z28
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1992 Z28
TGO Supporter
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
i'd say at most you might see 10hp gain. i'd buy the steel roller rockers from comp, with the full roller set up, not just the tip. sometimes saving a few dollars isn't everything. the comp rockers are lighter than aluminum and stronger.
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ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM
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ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM
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