VN S1 V6 Roller Rockers

[crazybiker]

I'm planning on getting myself a set of YT roller rockers for my girl.

It's a VN V6 Series 1 buick motor.

What would probably be the maximum ratio I could go?

1.8, 1.9?

[TappetHead]

1.8 is the maximum ratio we do for the early 3800's
VN S1 prior to eng no 1274843 uses 3/8" mounting bolts.
Set number is YT6657

[crazybiker]

Alrighty, so I'll go those beauty's.

How much of a difference should I notice?

Are they difficult to install?

And is there anything I should know about before installing them. Like if I should replace something else at the same time?

[vn calais manual]

valve springs.

[crazybiker]

...and how much should they set me back?

Where do I get them? Holden?

[savage1987]

I'm also interested on the gains from roller rockers on an S1 VN, and how much they cost.

[crazybiker]

Well, it's about $650-$700 for just the rockers, but I don't know where nor how much the valve springs are gonna cost.

[immortality]

Well, it's about $650-$700 for just the rockers, but I don't know where nor how much the valve springs are gonna cost.

if you replaced the valve springs when the motor was rebuilt yo uwon't need to replace em again

[crazybiker]

I'm not too sure about that.

Either way, I'd replace them anyway to be sure.

Where would I get them? ... and what prices should I be looking at?

[TappetHead]

Call Crow Cams on 039 3570469