1.6 Roller Rockers
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Senior Member
Joined: Oct 2005
Posts: 535
Likes: 1
From: Cincinnati, Ohio
Car: 1989 Iroc Z
Engine: 496 BBC
Transmission: th400
Axle/Gears: 4.11
1.6 Roller Rockers
Did a search and couldn't find any useful information, but I was wondering what rockers i should order from Summit for price and reliability, and should i order anything else with it?
But that aside is there any tuning changes i should make, i have my current tune for my full exhaust and a few mods, but will it change the VE?
But that aside is there any tuning changes i should make, i have my current tune for my full exhaust and a few mods, but will it change the VE?
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Joined: Jan 2002
Posts: 9,962
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: 1.6 Roller Rockers
Standard stamped steel or steel RR from comp-cams or similar would work. Nothing aluminum. I doubt youll see a huge change in your VE. Probably just a relatively minor increase in certain areas. 1.6 ratio rockers are more of an incremental change then anything else.
Thread Starter
Senior Member
Joined: Oct 2005
Posts: 535
Likes: 1
From: Cincinnati, Ohio
Car: 1989 Iroc Z
Engine: 496 BBC
Transmission: th400
Axle/Gears: 4.11
Re: 1.6 Roller Rockers
So should i expect 10 hp? 15? Hmm and why nothing Aluminum?
and how about these... http://store.summitracing.com/partde...6&autoview=sku
and how about these... http://store.summitracing.com/partde...6&autoview=sku
Last edited by M1tch; Jul 17, 2007 at 04:37 PM.
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Joined: Jul 2006
Posts: 186
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From: waterford, MI
Car: 89 RS
Engine: 305 carbed
Transmission: 700R4
Axle/Gears: 3.42 auburn posi
Re: 1.6 Roller Rockers
if your going to spend 200 bucks on roller rockers just get comp cams pro magnum rockers. jegs has them for about 280. full roller design, stronger then aluminum. and you could expect a 10-15 hp increase over a stamped steel stock rocker.
Joined: Feb 2001
Posts: 13,758
Likes: 560
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Re: 1.6 Roller Rockers
I would go with a set of stamped 1.6 summit brand rockers for 87' and later heads. You won't any noticable difference compaired to true roller set-up. Not worth the extra $150 when $50 can net you a solid hp gain. The stock cam can take all the help it can get and 1.6 rockers are a pretty good mod. I would only consider them if I didn't already have headers or at least a cat-back. Your $50 is better off in a savings jar until you can afford the rest.
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Joined: Nov 2004
Posts: 740
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From: cleveland ohio
Car: 1991 camaro RS
Engine: CharlesOdoryOB
Transmission: 82513892892
Axle/Gears: pbr disc 3.27 nine bolt
Re: 1.6 Roller Rockers
summit dosnt carry a stamped Self-Aligningrocker other then 1.5 stockers
from gm proformance parts
the summit ones are not Self-Aligning and would need screw in studs negateing the cost saveings of useing the stamped vs something roller
also why are alloy ones not recommeded they came stock on lt-4 engines apperently gm feels there ok for use on production engines
from gm proformance parts
the summit ones are not Self-Aligning and would need screw in studs negateing the cost saveings of useing the stamped vs something roller
also why are alloy ones not recommeded they came stock on lt-4 engines apperently gm feels there ok for use on production engines
Last edited by Azrael91966669; May 17, 2008 at 04:49 PM.
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From: San Jose, CA
Car: 2002 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
Re: 1.6 Roller Rockers
http://www.sdparts.com/product/RK738...rArms87UP.aspx
I bought these for my 90 RS a few years back (were alittle cheaper then) and I picked up .15s in the quarter mile.
They are 87+ self realigning stamped rockers and even though the description says otherwise they do come with the pivot ball and nut.
I bought these for my 90 RS a few years back (were alittle cheaper then) and I picked up .15s in the quarter mile.
They are 87+ self realigning stamped rockers and even though the description says otherwise they do come with the pivot ball and nut.
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