Opinion on 260H cam?

[LeftVentricle]

Cam specs

I'm considering getting this cam, since it's a little silly to do all the work I have planned and stick with the stock cam. What do you guys think? It doesn't seem to be all that crazy as far as the specs go, and the usable range seems good. Will it work in a gen 2 FWD engine? Will I need custom pushrods, and if so, what lengths? I'll be using 1.6 rockers as well.

[z284pwr]

Cam specs

I'm considering getting this cam, since it's a little silly to do all the work I have planned and stick with the stock cam. What do you guys think? It doesn't seem to be all that crazy as far as the specs go, and the usable range seems good. Will it work in a gen 2 FWD engine? Will I need custom pushrods, and if so, what lengths? I'll be using 1.6 rockers as well.

Never heard any bad reviews about that cam, it seems like a pretty popular cam, and as far as I know will even work with the stock computer. I wouldn't think you need custom pushrods and should work fine with 1.6 rockers as well.

[Superdave]

"The world's best cam combined with a poor set of heads will produce an engine that's a dog. But bolt on a set of great heads even with a poor cam, and that engine will still make great power." ~John Lingenfelter



Bold on a 3400 top end with or without that cam and you'll really pick up some power.



you'll need tuning either way to make the most of it.

[LeftVentricle]

A gen 3 top swap would be awesome, but a) I've already bought the gen 2 parts for this and b) acquiring all the odds and ends necessary to do it in an A-body will end up being pretty expensive due to the lack of junkyards in Las Vegas.

Yeah, there will be tuning, you can bet on that.

[geoffinbc]

Yea it is a good cam. I am using the Comp 252 cam for My Trooper and it has gobs of torque between 2000 and 3000 RPM. The 262 cam will move the torque up in the RPM and increase it a bit because of the extra lift. I am also using 1.6 rockers with it.

[ForcedFirebird]

For good mild street use its a good cam, but if you want more power and are tuning anyways, I would suggest something larger. The 260h cam is really way to small IMO for aluminum heads. I've been running dynomation sims today and see really just how small it is (it's really lame with Gen 3 heads).

[LeftVentricle]

What do you think then? Like a 272?

[LeftVentricle]

Can I please get a definitive answer on the custom pushrods? Lumpier than stock cam + 1.6 rockers = ?

Also, if I use iron head head gaskets (compression rises to ~9.3), would I need to run premium?

[Superdave]

if you stay all gen2 then no, you don't need custom pushrods. 1.6 rockers won't change that either. Just make sure to get the recommended springs so you won't run into any binding issues.

no, you won't need premium for that compression. When you start tuning it just watch for knock events, you may have to fiddle with the advance a little to make the most out of it.

[WrathOfSocrus]

if you stay all gen2 then no, you don't need custom pushrods. 1.6 rockers won't change that either. Just make sure to get the recommended springs so you won't run into any binding issues.

no, you won't need premium for that compression. When you start tuning it just watch for knock events, you may have to fiddle with the advance a little to make the most out of it.

I thought the only way to gain cam lift on any pushrod motor was by reducing the base circle and using longer pushrods to correct the rocker geometry. I have read on here that any 2 identical builds could also have slightly different measurements requiring a pushrod length checker to be used. I have heard people using the 1.6 rocker upgrade on stock pushrods for Gen 2 motors but I thought any time the cam was changed the pushrods had to be changed to match. Is this not correct?

[ForcedFirebird]

That's because the adjustability of the stamped rockers allows for a slightly more forgiving pushrod length. It's when you use Gen3 heads and the non-adjustable rockers that absolutely need pushrod lenghths checked.

[Superdave]

That's because the adjustability of the stamped rockers allows for a slightly more forgiving pushrod length. It's when you use Gen3 heads and the non-adjustable rockers that absolutely need pushrod lenghths checked.

Yep

Plus, if you use the thinner iron head gaskets you'll make up for some of the lifter preload loss due to the smaller base circle.

Also keep in mind that the 260H isn't that big of a cam, chances are that the base circle isn't much different than stock.

[Weston19]

Yep

Plus, if you use the thinner iron head gaskets you'll make up for some of the lifter preload loss due to the smaller base circle.

Also keep in mind that the 260H isn't that big of a cam, chances are that the base circle isn't much different than stock.

It really isnt that big of a cam at all, i wish i could tell you what it would do for your gen2 motor but i did it opposite, and went 3400 top end and then the 260H......In terms of performance, its not the biggest cam but it just works on my motor. I have 1.6 rockers, .40 headgaskets, soon to have a 3500 plenum and some headers, but even with wust the hg's rockers and bolt on's it really woke the car up. The 3400 swap did wonders and i was amazed after doing that, but adding the cam on top of it just made it so agressive. You will have to re-tuned the motor almost completly, i found all sorts of power just tuning it. Ive yet to dyno it yet, but it was running 14.65 at 98 mph in my 88 z24 5 speed, spinning 1st 2nd and part of third. I believe with a little more breathing room via porting, headers and 3500 plenum i can make a 13 second pass with a traction aid called m&h racemasters. Your going to have to run special oil tho, the flat tappet cams need the zinc and phospurous thats now missing from most on shelf oils. If you got any questions about the cam and how it feels or pulls pm me, it pulls very hard all the way to 6500.

[LeftVentricle]

What type of oil? Will the stock springs be sufficient?

[LeftVentricle]

What type of oil? Will the stock springs be sufficient?

Hello