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Roller rockers from Summit...

Old Dec 27, 2004 | 12:50 PM
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305q_ta86's Avatar
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From: Calgary, AB
Car: 1993 Nissan 240sx
Engine: Turbo KA24DE
Transmission: 5 spd
Axle/Gears: 4.08 VLSD
Roller rockers from Summit...

Ok, so I have the LG4 engine, which is like "Lift? what's that?" so I am looking at 1.6 rockers. I found the following two at Summmit, and I was just wondering if they look half decent to you experts, and if they will work with my 416 heads without machining or anything.

http://store.summitracing.com/defaul...4924497+302284

http://store.summitracing.com/defaul...4924497+302284
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Old Dec 27, 2004 | 09:23 PM
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Both links go to the same part.

Regardless, I wouldn't bother. For that $159, you could get a real cam. You will most likely need at least new valve springs, and depending upon the final at-valve lift, do some guide shortening.
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Old Dec 27, 2004 | 09:50 PM
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From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
agree 100% you can get twice the power gain for half the money with a new cam swap, including new valve springs.

Don't be a *****... pull the timing cover and intake manifold and swap the camshaft.

real men swap cams not rockers
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Old Dec 27, 2004 | 09:53 PM
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From: NJ
Car: 84 Z28
Engine: 305 HO
Transmission: 700r4
Originally posted by F-BIRD'88
Don't be a *****... pull the timing cover and intake manifold and swap the camshaft.

real men swap cams not rockers


Thats just funny as hell, i think im going to **** my pants
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Old Dec 27, 2004 | 10:45 PM
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From: Calgary, AB
Car: 1993 Nissan 240sx
Engine: Turbo KA24DE
Transmission: 5 spd
Axle/Gears: 4.08 VLSD
Oops.. the other link was supposed to go to a crappier $100 version.

Anyhow, I do not intend to keep the 305 for a really long time, so I was thinking I could just do the rockers to keep me happy for a while.

The thing is, I dont have access to a shop too often, so a cam would be a buttload harder for me to do. If I remove the radiator, I can swap the cam with the engine still in the car though, right?

Well I'll do some research and find out what cam I want and then ask some questions like whether or not I will have to change this or that part and all that.

How long would a cam take for a first timer with the help of his shop teacher?
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Old Dec 27, 2004 | 10:48 PM
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From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Cam swap in sig. It can be done in an afternoon.
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Old Dec 27, 2004 | 11:00 PM
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At what kind of engine mileage do you forget about a cam swap? Or, do you go by a compression check and let that be your guide as to whether you swap a cam or just go for a complete engine rebuild?

Thanks!
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Old Dec 27, 2004 | 11:10 PM
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From: Calgary, AB
Car: 1993 Nissan 240sx
Engine: Turbo KA24DE
Transmission: 5 spd
Axle/Gears: 4.08 VLSD
Originally posted by Parrydise7
At what kind of engine mileage do you forget about a cam swap? Or, do you go by a compression check and let that be your guide as to whether you swap a cam or just go for a complete engine rebuild?

Thanks!
Oh yeah... Good question. Mine has 130,xxx miles on it. that's why I was thinking just rockers for now, because I dont have much money and I just want to have some funwith this engine before I get a 350 next summer...or the one after that...
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