anybody use an isky 262 super cam? - Chevelle Tech
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post #1 of 26 (permalink) Old Nov 28th, 03, 1:09 AM Thread Starter
 
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I just pulled my big block 402 apart.(It didnt run when I pulled it.) I found an isky 262 super hydraulic cam. Anyone have one in a big block? how does it drive? What kind of power does it make?
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post #2 of 26 (permalink) Old Nov 28th, 03, 2:03 AM
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Years ago I knew a guy who had a 396/325HP Impala...
TH400 with 2.73's...He had already installed dual exhausts ( no headers ) and wanted alittle more...so he put the Isky 262 and fresh Isky valve springs and retainers to replace the stock ones....He didnt want to change rear gears since he traveled the freeways alot.The 262 cam idled real good ..just alittle bit bumpier than the stock 325 HP/396 cam...but still real good...not rough at all.But out on the freeway is where you really felt that cam....quite a noticable improvement in passing and hill climbing power...he really liked it...and it was quiet also...no soild lifter sound like many of todays fast acting hyd cams.

That said it is NOT a race cam....If you want power in the off idle to 4500 rpm range its a good cam...but dont expect it to make power at 6000 RPM.
If you already have 3.73 gears you might not like that cam....but with 3.08 or 3.31's it's a nice piece.Wont set the world on fire but it was never designed to do that either....but for everyday driving or towing it's perfectly fine.

Al.
1969 El Camino
1969 LS-1 engine is a 427/335HP BBC
passenger car mill..( mine is slightly modified ).
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post #3 of 26 (permalink) Old Dec 3rd, 03, 6:28 AM
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Darren
 
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Al,
I know you said it was years ago, but do you remember what the "low" speed torque was like with the Isky 262?

I was thinking of using this cam (maybe ground on a 110 lobe sep??) in a 400 small block for my 84 Suburban. I was a little concerned because with a 700R auto, the rpm's driving around town are usually between 1000 and 2000 rpm and the rpm range of the cam starts at 2000 rpm. Any thoughts?

Darren
1971 Chevelle
496
CFM Ported Stage 5 Brodix Race-Rites 310cc
10.5 scr
Ultradyne Solid Roller 256/264 .660/.660 108 lsa
CFM Ported Victor Jr / Pro Systems HP1000
T-56 Magnum 6 Speed, DFX
12 Bolt TrueTrac, 4.56 gear 33 spline Mosier axles
30x12.5 ET Street Radial
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post #4 of 26 (permalink) Old Dec 3rd, 03, 8:03 AM
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Paul
 
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As silly as this sounds, I bet the old "Performer" generic cam at 204/214 should do you great AND cost A LOT LESS!! The one Summit and everybody else sells in their generic chea-, er, inexpensive cam line...

Check spec's out and even though it is an old tech cam, it is made to do JUST what YOU WANT, IMHO!!!!!

One step up from stock for max. grunt!!!

AND I'm an Isky fan!!

pdq67

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post #5 of 26 (permalink) Old Dec 3rd, 03, 9:10 AM
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I'm a big Isky fan also! [img]graemlins/thumbsup.gif[/img] I've got a mechanical roller in my big block, and I'm very pleased with it, that's why I thought I might try another Isky.

I have thought about that cam and the Crane 260/272 (204/216) with a set of 1.6 rockers. I was thinking that for a low rpm (under 4500) "daily driver" the single pattern might be a little better. The one thing that I'm not sure about is would I need to run a dual pattern since I most likely won't be using headers?

Darren
1971 Chevelle
496
CFM Ported Stage 5 Brodix Race-Rites 310cc
10.5 scr
Ultradyne Solid Roller 256/264 .660/.660 108 lsa
CFM Ported Victor Jr / Pro Systems HP1000
T-56 Magnum 6 Speed, DFX
12 Bolt TrueTrac, 4.56 gear 33 spline Mosier axles
30x12.5 ET Street Radial
525++ rwhp
http://www.chevelles.com/showroom/da...0930-00149.jpg
http://www.chevelles.com/showroom/da...m/Vic_Jr_1.JPG
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post #6 of 26 (permalink) Old Dec 3rd, 03, 11:23 AM
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Yes it was quite a few years ago...But honestly it ran real well... Wasnt obnoxious at all. But then again the 396/325 HP was an advertised 10.25 to 1 comp...probally a bit smaller in reality... I think that with 4200 pounds even that engine would have appreciated say a 3.08 or 3.23 gear in it... The 262 is still shorter than the stock 396/350 HP cam...

On my 427 that I use in my El Camino ... not a Hi Perf piece but I do use it as a truck and haul stuff with it....I have NO gears....M21 and 3.07's....I took out the XE 256/268 dual pattern Comp Hyd and put an Isky single pattern solid in it that is 212 @ .050.... 256 adv .....Talk about low speed TORQUE !....Way more drivable than the XE especially in the idle to 3000 range...I spend the vast majority of my time at 2000 and under....

I looked hard at my Ex System....ported exhaust manifolds and ported ( fully functional ) heat riser...2 1/2 in with OE Hemi Mufflers and 2 1/4 in out over the axle exiting behind the real wheels...
and decided that it has plenty of capacity for my 4500 RPM range and decided that the dual pattern XE hyd 256/268 212/218 was hurting my low speed vs what a single pattern would do....so I went with it instead....The low speed power and driveability was noticably improved....Again the vast majority of the time I'm under 2000 RPM.So the dual pattern was no help at all in my case.... Granted it's a solid but I'm sure the much longer power stroke of the single pattern cam 256 vs 268 really helped the bottom end also.

Darren I wish I could say for sure but I honestly have never used the 262 Hyd in any of my own cars.
The long stroke of the 400 should likely make it not much of an issue but it wouldnt hurt to call Ron and ask him...He useually there after 1:00 PM.

Al.
1969 El Camino
1969 LS-1 engine is a 427/335HP BBC
passenger car mill..( mine is slightly modified ).
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post #7 of 26 (permalink) Old Dec 3rd, 03, 12:16 PM
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I have already talked with Ron and he recommended the dual pattern Supercam 256/262(202/208 .425/.435). This cam just "seemed" a bit small for a 400. Looks perfect for a 350, and would probably make killer torque in a 400, but I was afraid that it might fall on its face in the upper range (during passing or accelerating onto the expressway).

Darren
1971 Chevelle
496
CFM Ported Stage 5 Brodix Race-Rites 310cc
10.5 scr
Ultradyne Solid Roller 256/264 .660/.660 108 lsa
CFM Ported Victor Jr / Pro Systems HP1000
T-56 Magnum 6 Speed, DFX
12 Bolt TrueTrac, 4.56 gear 33 spline Mosier axles
30x12.5 ET Street Radial
525++ rwhp
http://www.chevelles.com/showroom/da...0930-00149.jpg
http://www.chevelles.com/showroom/da...m/Vic_Jr_1.JPG
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post #8 of 26 (permalink) Old Dec 3rd, 03, 3:13 PM
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I agree .... I think that if you used it like I use mine....Been on the freeway maybe 6 times this year then go with the 256 intake...But for a more all round use if it were me I'd opt for the larger 262.

..this guy at work used to have a 3/4 Chevy long bed...he built a 383 for it...a 400 rod type 383...
He used the Performer cam with a Hollry Pro Jection..
When he bought the truck the rear end was making alot of noise...So he gets another from a wrecking yard and sticks it in there....It said 3.23 on it...Turns out to have 4.10's in it....The truck was a rocket for about 30 feet...then it would nose over and fall on it's face.... He later put a real set of 3.23's in it.... The engine came alive and would actually run....But even at that he still wished he had put a little bit bigger cam in it....
The 700R4 with 4.10 or even the 3.23's was just too much gear for the low end torquey 383 that he built.

Al.
1969 El Camino
1969 LS-1 engine is a 427/335HP BBC
passenger car mill..( mine is slightly modified ).
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post #9 of 26 (permalink) Old Dec 3rd, 03, 3:55 PM
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Darren

i have a crane 266 energizer in the 350 in my 67 Biscayne. the cam specs are 210@.050 .440 lift and on a 110 lsa. it has plenty of torque to move that big ol Biscuit and it performs well up top too considering it has stock exhaust manifolds.

i built this 350 in my auto tech class during my senior year in high school (1996). its a 20 over 350 with stock replacement cast pistons, 882 open chamber heads with swirl polished 1.94 intake and 1.50 exhaust valves, holley dual plane intake, a 750 edelbrock carb, and the stock rams horn exhaust manifolds. we (my instructor and i) ccd the heads and we calculated at or close to 9 to 1 compression ratio. the car has a th350 with a shift kit, a 2400 b&m holeshot convertor and 3.55 gears with a auburn posi in the stock 10 bolt. it also has 2.25 dual exhaust with some cheap turbo mufflers.

i drove this combo everyday for a few years until i couldnt stand the windshield leaking any longer, now the car is in the garage undergoing surgery. but the car has plenty of torque and will burn the 255/60/15 tires with ease. the last time i had this car out i gave my brothers 95 LT1 Trans Am a run for his money, the look on his face was priceless. although i never had the biscayne to the track my brothers T/A runs 14.2 in the quarter and i have no doubts that old 4000lb biscayne wouldnt be far behind.

i think the 266 energizer would work real well in a 400 combo such as yours.

Brandon

1966 SS396 Chevelle
427 11:1 rect.heads
4 speed 3.90 posi
1967 Chevy Biscayne 2 dr.
350 th-350
3.55 posi

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post #10 of 26 (permalink) Old Dec 3rd, 03, 3:59 PM
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The 3/4 ton truck sounds a little like mine now; bone stock 350, q-jet, dual exhaust (no cats). Mine is a 3/4 ton with a trailer towing package, 700R and 3.73's. Pretty decent on the start, but dies fast.

I'm in the planning stages for a new motor now. So far the plans are as follows: 400, SR Torquer heads with a small amount of bowl work, small hydro cam, 9:1cr, Performer intake with a Q-jet.

Just tring to decide on the best cam for my application.

PS: maliboo66, I apologize for high-jacking your post. [img]smile.gif[/img]

Darren
1971 Chevelle
496
CFM Ported Stage 5 Brodix Race-Rites 310cc
10.5 scr
Ultradyne Solid Roller 256/264 .660/.660 108 lsa
CFM Ported Victor Jr / Pro Systems HP1000
T-56 Magnum 6 Speed, DFX
12 Bolt TrueTrac, 4.56 gear 33 spline Mosier axles
30x12.5 ET Street Radial
525++ rwhp
http://www.chevelles.com/showroom/da...0930-00149.jpg
http://www.chevelles.com/showroom/da...m/Vic_Jr_1.JPG
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post #11 of 26 (permalink) Old Dec 3rd, 03, 4:08 PM
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Brandon, I was also thinking of the Crane 266.

I am just having a hard time deciding what would be best. Don't want it to die at 3000-3500 when I'm trying to pass someone, but i don't want too big that it is a dog down low. With normal city driving and the 4 speed auto, it shifts into overdrive at about 35-36 mph and the tach drops to about 900 rpm. Gets kinda sluggish with the stock 350 [img]graemlins/boring.gif[/img]

Darren
1971 Chevelle
496
CFM Ported Stage 5 Brodix Race-Rites 310cc
10.5 scr
Ultradyne Solid Roller 256/264 .660/.660 108 lsa
CFM Ported Victor Jr / Pro Systems HP1000
T-56 Magnum 6 Speed, DFX
12 Bolt TrueTrac, 4.56 gear 33 spline Mosier axles
30x12.5 ET Street Radial
525++ rwhp
http://www.chevelles.com/showroom/da...0930-00149.jpg
http://www.chevelles.com/showroom/da...m/Vic_Jr_1.JPG
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post #12 of 26 (permalink) Old Dec 3rd, 03, 5:16 PM
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Darren

i really think that 266 energizer would work really well in your 400. with the longer stroke and better heads i would imagine it perform much better than in my biscayne. it should have much more torque, and the cam will seem smaller in a 400 compared to a 350 and have better low speed manners.

although i have no experience with an overdrive trans and this cam, but my biscayne did have 3.08 gears in it before i put the posi and 3.55s in. i never had any issues with low speed driveablity. i could be driving at 25mph in third gear and doing a little over 1000rpms. without downshifting it would pull fine in those low rpms, no chugging or bucking at all.

Brandon

1966 SS396 Chevelle
427 11:1 rect.heads
4 speed 3.90 posi
1967 Chevy Biscayne 2 dr.
350 th-350
3.55 posi

videos

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post #13 of 26 (permalink) Old Dec 3rd, 03, 7:43 PM
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Paul
 
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pdq67 again,

Ditto on the Crane 266 cam!

I was thinking along the lines of what you mentioned when I came back with the "Performer Cam" which I STILL think IS a very good cam for the money and grunt like you seemed to want when you listed the cam you did.

But the 266 should really up the rpm's just enough to make life interesting like already mentioned!!

Otherwise go with the smallest solid cam you can find AND I bet it will do you good too!! Something like a 215 or 220 duration at .050" solid would be great!! IMHO....

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post #14 of 26 (permalink) Old Dec 4th, 03, 12:30 AM
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pdq...

Maybe the old E-4 mechanical cam huh ? Ya know I actually have one of them here...totally forgot I had it...Bot it from T Willey Hutchins back circa 1981. Probably work pretty deciently in there.... Actually the one I have is not the origional that Vic Edelbrock designed....That one was discontinued decades ago and replaced with this version....Actually the old was was available as late as 1968..maybe later but somewhere in the early 70's many of the old cams were dropped and redesigned...this one is the newer one.

But I would think that if you wanted a Crane the 266 Energizer would work well also.....

Al.
1969 El Camino
1969 LS-1 engine is a 427/335HP BBC
passenger car mill..( mine is slightly modified ).
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post #15 of 26 (permalink) Old Dec 4th, 03, 6:32 AM
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Darren
 
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Thanks guys, I appreciate your input. [img]graemlins/thumbsup.gif[/img]

This buildup is still a year or two off so I'll be giving it somemore thought. I'm liking the idea of the Crane 266 with a set of 1.6's.

Al, I have been following your posts about the cam swap in the 427. I had already made my mind up to get a Comp Cams XE cam, but after reading your posts about running better with a single pattern cam it got me thinking. I was even considering that Isky solid that you are using with a set of 1.6 rockers.

Do you think you picked up the better low speed torque from the fact that it is a single pattern or that it is a solid?

Darren
1971 Chevelle
496
CFM Ported Stage 5 Brodix Race-Rites 310cc
10.5 scr
Ultradyne Solid Roller 256/264 .660/.660 108 lsa
CFM Ported Victor Jr / Pro Systems HP1000
T-56 Magnum 6 Speed, DFX
12 Bolt TrueTrac, 4.56 gear 33 spline Mosier axles
30x12.5 ET Street Radial
525++ rwhp
http://www.chevelles.com/showroom/da...0930-00149.jpg
http://www.chevelles.com/showroom/da...m/Vic_Jr_1.JPG
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