3500 solid cam

[jdv]

I picked this cam up and need some info on it from the cam experts. Right now the motor is in a fiero with a 4 speed with stock manifolds into 21/4 duel exhaust. I am running $12p in a 165 for a computer. Any advise on compression. I know I will need new springs and retainers. I have the solid lifters. This is just a weekend car so I can live with some lack of drive ability.




whttp://60degreev6.com/forum/attachment.php?attachmentid=7350&d=1361384175&thum b=1&stc=1ant

[3400-95-Modified]

A bit odd that its a Lunati 60 degree v6 cam but they have recommendations on SBC lifters and SBC non conical springs, seems like they don't know what works with the 60 degree engine. Also the 1.5 ratio is wrong, since roller 60 degree setups had 1.6 ratio rockers.

[Superdave]

It will do better with higher compression of course but should be ok at the stock 9.8:1 of a 3500. That is a lot of cam though, actual lift is .630in/.637ex.

a ported top end, good headers with a good tune and that's going to be a serious engine.


You are really going to have to check piston to valve clearance, my cam is .539in/.549ex with about the same duration as yours and my exhaust valves dug .030" dents in my pistons. You are also going to need new adjustable rockers and the heads will have to be machined to get enough installed height.

Ben's PAC1518 springs should do the trick after the machine work though. http://wot-tech.com/shop/gm-60v6/pac.../prod_223.html



Does it use a gen 3 or gen 2 timing set?

[jdv]

gen 2 on the timing set. I have crane gold roller rockers in 1.5 ratio that i can use. My concern is the 106 lsa as I have read it should be 110-113 for efi set ups. Can I use the the gen 2 timing set on the 3500?

[3400-95-Modified]

Ok the 1.5 rockers will definitely help the cause of it being way to aggressive lift wise... I also have 568 lift on my cam for the exhaust with 240 duration at .050 and I have dimples in my pistons as well

Might want to see if anyone will part with the just produced Double Roller timing chains, since the cam I have over two years of running, maybe 10k miles has already stretched a gen2 chain and I can hear it slapping around under the cover. Even cryo treated they don't last long, I don't know if it's the chain that wears or the sprockets.

[SappySE107]

He can't use that DRTC and the gen 1 won't clear the 3500 timing cover. Knock sensors don't like solid valvetrains either so this is going to be interesting once its running.

[jdv]

I have the 88fiero front cover that will fit the 3500 oil pan so that is not a problem but will the bottom gear fit the 3500 crank

[Guest]

Not sure if the bottom gear of the of the Cloyes double roller will fit on a 3500 crank. it will fit a 3400 though of course. I say get a Cloyes double roller, see if it fits, if not any machine shop could modify the crank to get it to fit. I am certain the fiero timing cover will clear the double roller with no mods.

[Superdave]

The gen 1 gear fits on a 3500 crank, as long as it's got that timing cover he should be fine with pretty much anything.



106 LSA will be ok, i can say without a doubt you are going to have a very long road ahead of you for tuning this thing.

[SappySE107]

The gen 1 gear fits on a 3500 crank, as long as it's got that timing cover he should be fine with pretty much anything.



106 LSA will be ok, i can say without a doubt you are going to have a very long road ahead of you for tuning this thing.

I think that sums it up

[3400-95-Modified]

What am I missing about this cam? is it not a 3x00 style cam? if it is why are you guys suggesting to run the Cloyes double roller setup? Wouldn't he have to also modify the cam gear to accept the single bolt and use the timing pin.

I can understand the TCE DRTC not fitting under a Fiero cover since it barely fits under a stock 3400 one.

[Superdave]

Nope, it's a gen1/2 3 bolt style cam. Old school so the double roller will work.


the gen 1 chain is HUGE compared to the later ones, I've got a comparison pic somewhere.

[3400-95-Modified]

Nope, it's a gen1/2 3 bolt style cam. Old school so the double roller will work.


the gen 1 chain is HUGE compared to the later ones, I've got a comparison pic somewhere.

How did you guys figure that out... I didn't see that info posted anywhere.

[Guest]

A bit odd that its a Lunati 60 degree v6 cam but they have recommendations on SBC lifters and SBC non conical springs, seems like they don't know what works with the 60 degree engine. Also the 1.5 ratio is wrong, since roller 60 degree setups had 1.6 ratio rockers.

What?

I'd say they know exactly what works in the 60* V6.

SBC lifters have been used in 660 since the '80's. It was actually a recommended upgrade directly from GM Performance division, for heavy duty and racing use.

SBC valve springs have also been used and recommended for the same reasons, and for as long.

The 660 actually shares a number of component dimensions with the SBC, like the lifter diameter, crank snout diameter, early cam bolt patterns, Valve spring sizes are close, cam bearing diameter, though the width is different.

[3400-95-Modified]

What?

I'd say they know exactly what works in the 60* V6.

SBC lifters have been used in 660 since the '80's. It was actually a recommended upgrade directly from GM Performance division, for heavy duty and racing use.

SBC valve springs have also been used and recommended for the same reasons, and for as long.

The 660 actually shares a number of component dimensions with the SBC, like the lifter diameter, crank snout diameter, early cam bolt patterns, Valve spring sizes are close, cam bearing diameter, though the width is different.

Last time I read a thread about someone wanting to use newer SBC lifters in a 3500 it's not possible because the oil holes don't line up. Maybe I'm wrong but I remember that being a question in a thread.