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| ea_falcon |
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what brand of roller rockers are people running ive checked out a few and they all rave on how there the best
is it worth putting the 1.7 ratio in stock gt40 p heads ?? DSM Performance $about 200 new, crane $350 new and yella terra 600 new  are some of the brands of checked out
_________________ 02 series 3 AU marline ute 5speed 347 stroker |
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| TerroristGHIA |
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My first set were Trickflow 1.7s
My current Motor has Comp Platinum series 1.6's, as i was worried about piston to valve clearance. My trickflows were sourced here in AUS, and cost me a pretty close to 600. My comps cost me 550 US plus postage but i got a lot of stuff with them so postage was a lot cheaper. Brett
_________________ The Terrorist ED Retired due to RUST. |
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| EB-5LTR |
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yeh roller rockers are good upgrade from pressed rockers. Main benifits is usually from a 1.72/1.7 rocker will give you higher lift specs with a stock cam = more power. Many companies claim 10-30hp gain depending on combo. Though using 1.72/1.7 rockers with after market cam and stock pistons may have issues with piston to valve clearance.
Also roller rockers are alot stronger and can handle a bit higher rpm work as opposed to standard rockers. Less friction and weight in the valvetrain the better but it costs $$. |
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| Vic |
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I run Yella Terra roller rockers and from personal experience, YT have treated me well in regards to backup / support when buying stuff from them as retail sale.
_________________ 5.6L of carbon footprint. |
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| xafalcon |
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Remember, you get what you pay for. DSM sounds like a chinese knock-off brand (I could be wrong). IMO it's best to stick with the name brand parts - they may cost more, but that pays for better quality control and more R&D in the future. I have run both Crane & Yella Terra, and they are both good. Although Yella Terra has had some trouble with soft push-rod cups in some of their rocker arms back in the early 2000's.
Just make sure you purchase the right type of mounting - bolt-on pedistal is good for strong street engines, stud-mount (3/8 or 7/16") is required for more heavy duty applications. The Yella Terra shaft systems are a really good idea and very strong.
_________________ XA Faimont 351C, AU2 XR8 Manual 5.0, DA LTD 5.0, Mk1 Capri 5.0, 1995 Mustang 5.0, EF2 XR8 Manual, EF2 Fairmont Ghia 5.0, AU3 XR8 Auto, AU2 XR8 Auto, AU2 XR8 Manual Ute, TE Cortina 5.0 Manual, DU LTD 5.0 soon to be manual |
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| ea_falcon |
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is it a straght swap with crane 1.7 roller rockers with mine
so do i bolt mine off and put the 1.7s straight on ? would it be worth me gettin my cappa flash tuner tuned again to suit the rockers?
_________________ 02 series 3 AU marline ute 5speed 347 stroker |
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| xr8boy |
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{USERNAME} wrote: My current Motor has Comp Platinum series 1.6's, as i was worried about piston to valve clearance Brett Comp platinums??? No such thing Comp makes pro magnum/ultra pro magnum, hitech, Platinum is a YT branding Please correct me if I'm wrong
_________________ New project 5.4l 331ci S380R, 8.2 4.125 Man o war, Billet LAE crank, Jon Kaase Heads, Pauter Rods, JE pistons |
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| TerroristGHIA |
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My mistake,Ultra Golds are what i have
Here is the link http://www.summitracing.com/parts/CCA-19043-16/ Brett
_________________ The Terrorist ED Retired due to RUST. |
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| TerroristGHIA |
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And as it states in the Summit link, less than 300, Gees i must have been of when i posted those.
Brett
_________________ The Terrorist ED Retired due to RUST. |
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