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VS Cam Build.

GTPpower said:
No, you will probably want an input shaft and 7/8" chain as well.
Click to expand...
Thanks for the reply

So is the sonnax upgrade a yes or no are there stages or just one?

So harden 4th, 4340 IS, 7/8th chain and shift kit good enough?

Also is this hard to install?
 


GTP89 said:
Thanks for the reply

So is the sonnax upgrade a yes or no are there stages or just one?

So harden 4th, 4340 IS, 7/8th chain and shift kit good enough?

Also is this hard to install?
Click to expand...

Talk to Dave. He can get you everything you need. I would buy the valve body from him, as well as his 3rd gear upgrade. Hardened 4th would be good as well.
 
When measuring the above rocker using the shiny part as a contact point the rocker ratio varies from 1.53 to 1.81. Pretty crazy huh?
Click to expand...

does that not happen on all pushrod engines........(contact patch on rocker)

edit: a 1.6 rocker with 257 lobe lift, is still a 1.6 rocker at 300 lobe lift


 
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GTPpower said:
Talk to Dave. He can get you everything you need. I would buy the valve body from him, as well as his 3rd gear upgrade. Hardened 4th would be good as well.
Click to expand...
I did before this and he suggests a whole new kit plus upgrades which the kit alone is like 800 plus performance parts which seems a little too much for me personally.

Also as far as the cam goes LS retainers and 60 injectors good and all that is needed to be safe?
Also should I leave my heads alone or try and do some slight port work on the exhaust side since that is where you have the most gain.
 


Seachicken said:
does that not happen on all pushrod engines........(contact patch on rocker)

edit: a 1.6 rocker with 257 lobe lift, is still a 1.6 rocker at 300 lobe lift
Click to expand...

No, roller rockers are a fixed ratio. Stock rockers are not a fixed ratio. The higher the lift, the higher the ratio. (to a certain extent, obviously.)
 
GTP89 said:
I did before this and he suggests a whole new kit plus upgrades which the kit alone is like 800 plus performance parts which seems a little too much for me personally.

Also as far as the cam goes LS retainers and 60 injectors good and all that is needed to be safe?
Also should I leave my heads alone or try and do some slight port work on the exhaust side since that is where you have the most gain.
Click to expand...

LS retainers and 60lb injectors should be all you need.

You won't get anywhere close to 350whp on stock heads with a VS cam. If you want those numbers, ported heads are a must.
 
GTPpower said:
No, roller rockers are a fixed ratio. Stock rockers are not a fixed ratio. The higher the lift, the higher the ratio. (to a certain extent, obviously.)
Click to expand...

read #40

now tell me how they are not on a fixed ratio, the wear patch does not mean the ratio varies
 
GTPower is 100% right on this. The lift numbers equate to 1.8 ratios. The deflection that ZZP was seeing does not seem to transfer over into reality, as the 1.7 rockers show decreased power over "stock 1.6s" every time.
 


Ok guys will be taking out the cam today. In you're opinion should I take the heads to get the valves redone the engine was working 100% but give me the chance to clean up all the piston gunk as well as the heads.
Anything I should watch out for I am going to take off the rockers, pushrods, and lifters then install the cam in with some regular engine oil is that ok? Or do we need special lube to install it.
 
GTP89 said:
Ok guys will be taking out the cam today. In you're opinion should I take the heads to get the valves redone the engine was working 100% but give me the chance to clean up all the piston gunk as well as the heads.
Anything I should watch out for I am going to take off the rockers, pushrods, and lifters then install the cam in with some regular engine oil is that ok? Or do we need special lube to install it.
Click to expand...

Are you pulling the heads off? If so, take them to a machine shop for inspection. If not, leave them alone.

Just look for anything that doesn't look right (damage, excessive wear, etc) when you pull the motor apart.

I always use assembly lube when doing a cam swap.
 
if it has some miles on it i would consider a valve job, a quick bowl blend with you new cam, yeahhhh!!!!!!


GTPpower, i found this to confirm you knowledge, thank you sir
Rocker Ratio
 
GTPpower said:
Are you pulling the heads off? If so, take them to a machine shop for inspection. If not, leave them alone.

Just look for anything that doesn't look right (damage, excessive wear, etc) when you pull the motor apart.

I always use assembly lube when doing a cam swap.
Click to expand...

Well as of now undecided if I should I mean the engine runs great but it has 100k so idk if I should pull them off and get the valves redone or keep them as is as well as try and port them idk if it is difficult to do.

Can I use regular motor oil if not where can I get the assembly lube?
 
Seachicken said:
if it has some miles on it i would consider a valve job, a quick bowl blend with you new cam, yeahhhh!!!!!!


GTPpower, i found this to confirm you knowledge, thank you sir
Rocker Ratio
Click to expand...

Honestly I don't mind getting it done my worry is that when I take them off small cracks will open up like between the valves which is what happened to my other set of heads.
 


GTP89 said:
Well as of now undecided if I should I mean the engine runs great but it has 100k so idk if I should pull them off and get the valves redone or keep them as is as well as try and port them idk if it is difficult to do.

Can I use regular motor oil if not where can I get the assembly lube?
Click to expand...

I would leave them as is then...but, you will get nowhere near 350whp on stock heads with that cam, FYI.

I would use assembly lube...any auto parts store will have it.
 
GTPpower said:
I would leave them as is then...but, you will get nowhere near 350whp on stock heads with that cam, FYI.

I would use assembly lube...any auto parts store will have it.
Click to expand...

Yeah that is probably what I'll do then when I have the funds get them ported by a shift just enoug to give me some good power nothing crazy. Or I will call around to see f they can do the work don't enlarge to spend past day 3-400 do idl if that is even possible for head wok.
 
BillBoost37 said:
I got a huge tube of the assembly goop from Napa. Nice price, good stuff.
Click to expand...
Is there a presence to it a brand or type never bought this stuff before

So as far as the cam goes my only worry is lining up the sits on the gears take the bolt of the cam gear and take the gear off and replace cam put gear back on with the holes lined up and torque it to spec?
 
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