born in the FB era
Roller Rockers 304 VR
Hi Tappethead.
Is the cam setup in a standard 304 Vr Ss hydraulic? Does that mean i can just direct replace non-adjustable Street Terror's without hassle and they clear the standard covers? And do they only come in the factory 1.65 ratio or are there higher ratio available now? I have checked the YT website and the St2032 bolt-on non-adjustable for the 5.0 say non(hydraulic) 1.65:1. Im a tad confused that if they are non hydraulic then shouldnt they have adjustment? Lastly they look like they are a cast rocker. Would this be a problem later on where im considering fitting up a smallish supercharger with low boost? The engine at the moment is low klm unopened but with a larger throttle body and injectors fitted. At this stage im not looking at replacing the camshaft. Any advice is very welcome. Thanks.
commydoor
Hey Commydoor,
The factory 5.0L does run a hydaulic lifter, so a non adjustable rocker can be used with out an issue, if you put a performance cam in later you just need to keep it hydraulic and not too big and they would still be fine.
A super charger set up on your engine would not really have any effect on your rockers if you are not changing internals.
Cheers
Micky.D
YT
born in the FB era
thanks MickyD,
I hope YT has those in stock for as soon as Mr Rudd comes through with the money a set there has my name on them.
I hate being a pain but while your here, since im not after full on H/P just a kick in the pants so to speak do you have a S/C kit available for the VR 304 thats small as in low boost and fairly cost effective? Allowing later a smallish intercooler may find its way on it (its a budget build and takes time as you know).
Thanks Jim.
born in the FB era
MickyD,
just wondering why it is that the 304's dont get any extra ratio from the standard 1.65:1
say to a 1.7:1 or a 1.75:1....do they just not benefit from it or is the valve gear prone to failures??
Thanks Jim.
born in the FB era
born in the FB era
MickyD can you PM me with a price on those rockers part number ST2032 and are they in stock. Mr Rudds money has arrived and im itching to buy.
born in the FB era
Jizz in my pants
I would also like to know this? is the standard lift already at its max?Originally Posted by Commydoor
Gas, Ass or Grass nobody rides for free
You tell him (coz you are right)
Donating Member
Jizz in my pants
I've got a feeing that anymore and they push rods foul on the heads, just a design flaw I guess.
Gas, Ass or Grass nobody rides for free
You tell him (coz you are right)
born in the FB era
Thanks Micky.D those rockers are in. Easy instructions, quick fit and they look the biz. Im more than happy with them. Thanks again.
High ratio rockers for holden V8
We made a high ratio rocker for the holden v8 Dash-9 heads a few years ago but not many people found a huge power gain in them and they didnt really move much so we discontinued them,
But we have put some 1.72 ratio rockers together in the Street Terra bolt on range for guys that want a little more and are not changing camshaft with huge lobe lift.
We have adjustable and non-adjustable available
( aftermarket camshaft could be used but clearances would need to be checked).
Cheers
Micky.D
YT
Thats great to hear
Not a worry at all
Cheers
Micky.D
YT
Donating Member
whats the pricing for those 1.72 ratio rockers and will i see much of a difference in my basicly stock 5 lt?But we have put some 1.72 ratio rockers together in the Street Terra bolt on range for guys that want a little more and are not changing camshaft with huge lobe lift.
We have adjustable and non-adjustable available
( aftermarket camshaft could be used but clearances would need to be checked).
Cheers
Micky.D
YT
Hey
PM sent
Cheers
Micky.D
YT
...almost 2years later I know... - I am thinking the same now, (1.72 ratio into a stock internals VP 5ltr) could you please send me some info??
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