my 350 with 882s? any good?

1740 Views 6 Replies 3 Participants Last post by cobalt327, Jun 12, 2009

andy_s273

Discussion Starter · Jun 12, 2009

im going to get some 062 vortecs but just wondering if you guys think i can get anything for em

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882's aren't bad for a mild build. If you plan to build a mild engine on a budget then use them.

A little DIY bowl smoothing goes a long way on those heads.

If you are building a truck engine with an auto trans and 3.08 gear then use the q-jet and stock cast iron intake with a set of full length header and a short duration cam.

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andy_s273

Discussion Starter · #3 · Jun 12, 2009

454C10 said:
882's aren't bad for a mild build. If you plan to build a mild engine on a budget then use them.

A little DIY bowl smoothing goes a long way on those heads.

If you are building a truck engine with an auto trans and 3.08 gear then use the q-jet and stock cast iron intake with a set of full length header and a short duration cam.

i was told these were straight up horrible from another member... and to throw them away! lol

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cobalt327

· #4 · Jun 12, 2009

andy_s273 said:
i was told these were straight up horrible from another member... and to throw them away! lol

Trust me- there are far worse heads from a street performance standpoint. The TBI heads used later on, like the 14102187, -191 and -193's are all pretty bad.

Then there's all those 1.72 x 1.50 350 heads (some c/n's 261, 624) that were on trucks and even Blazers in the 70's- some have 3/8" exhaust valve stems to boot!

So yeah, there are worse out there.

I wouldn't put one red cent into the 882's, though. Spend some on fitting your Vortec's w/better springs, etc. to allow for more lift.

BTW, your 882's should be checked to be sure they don't have the 3/8" exhaust valve stem- just to be safe. I've not seen the 1.72" intake valves in 882's, but I can't rule it out, either.

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andy_s273

Discussion Starter · #5 · Jun 12, 2009

cobalt327 said:
Trust me- there are far worse heads from a street performance standpoint. The TBI heads used later on, like the 14102187, -191 and -193's are all pretty bad.

Then there's all those 1.72 x 1.50 350 heads (some c/n's 261, 624) that were on trucks and even Blazers in the 70's- some have 3/8" exhaust valve stems to boot!

So yeah, there are worse out there.

I wouldn't put one red cent into the 882's, though. Spend some on fitting your Vortec's w/better springs, etc. to allow for more lift.

BTW, your 882's should be checked to be sure they don't have the 3/8" exhaust valve stem- just to be safe. I've not seen the 1.72" intake valves in 882's, but I can't rule it out, either.

thanks for the info so i have another vortec supporter lol

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454C10

· #6 · Jun 12, 2009

Never said the 882's were better than vortecs. Just said they aren't bad for a budget mild build. Budget and mild are the key words here. As you can re-use all the stuff (intake, valve covers, rocker arms)

with a mild torque cam (202 to 208 degrees at 0.050") with lifts in the 0.400 to 0.450 range the the 882's will perform well enough and close to the vortecs. Especially with a little DYI bowl work.

882's are just about the best smogger head GM built.

L31 vortec heads flow better, no doubt, but also cost more to run as they require vortec intake, vortec rockers, vortec valve covers, and require machining to run more than 0.450" lift.

882's flow very similar to world S/R torquer heads and better than the old fuelie heads and 441's.

882's flow 70/58 at 0.100, 125/108 at 0.200, 175/135 at 0.300, and 204/141 at 0.400.

S/R's: 68/55, 128/100, 179/133, 205/145
vortec's: 70/48, 138/100, 190/129, 227/140
441's: 55/45, 110/80, 160/112, 194/127

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cobalt327

· #7 · Jun 12, 2009

454C10 said:
Never said the 882's were better than vortecs.

I don't think anyone took you to mean they were. I didn't, anyway.

L31 vortec heads flow better, no doubt, but also cost more to run as they require vortec intake, vortec rockers, vortec valve covers, and require machining to run more than 0.450" lift.

While shortening the valve guide is one way to do it, there are ways to get enough clearance between the seal and retainer w/o machining anything, or by "ghetto grinding" the stock retainer.

Done on the cheap, it takes an hour of your time and a $50 set of "Z-28" springs to bring the heads up to .540" lift.

882's flow very similar to world S/R torquer heads and better than the old fuelie heads and 441's.

This is the first time I've heard this. About the fulie and 441's that is. I've never been a fan of the S/R's.

Thanks for the "food for thought"!

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