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Old 10-25-2013, 10:14 PM   #1
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I took my car to Matt grillo atlizard racing and he said my heads need to be rebuilt but he said just because they were stock he would go ahead and replace them. I had a set doble hump heads but to much work with little benefit. FYI yes I said Matt grillo the guy that had the racing shop in NY is now living in NC
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87 iroc z28 dd:305 with 700r4 and 9bolt rear 3.08gears
current mods comp cam performer rpm intake holly 600 700r4 street and strip shift kit
mostly stock 87 z28:305 with 700r4 10 bolt rear with 3.23 rear gears
mods comp cam and holly 600

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Old 10-25-2013, 11:39 PM   #2
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Why did you take it to the shop in the first place? What's wrong with it?
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Old 10-26-2013, 12:07 AM   #3
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Originally Posted by 87camaroirockid View Post
I took my car to Matt grillo atlizard racing and he said my heads need to be rebuilt but he said just because they were stock he would go ahead and replace them. I had a set doble hump heads but to much work with little benefit. FYI yes I said Matt grillo the guy that had the racing shop in NY is now living in NC
What's the question?
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Old 10-26-2013, 02:44 AM   #4
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Why did you take it to the shop in the first place? What's wrong with it?
It's burning some oil and it smokes when I first crank it up and first cut it off. I had 3 different mechanics diagnose the problem
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87 iroc z28 dd:305 with 700r4 and 9bolt rear 3.08gears
current mods comp cam performer rpm intake holly 600 700r4 street and strip shift kit
mostly stock 87 z28:305 with 700r4 10 bolt rear with 3.23 rear gears
mods comp cam and holly 600

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Old 10-26-2013, 02:47 AM   #5
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What's the question?
What kind of heads do you suggest for my car
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87 iroc z28 dd:305 with 700r4 and 9bolt rear 3.08gears
current mods comp cam performer rpm intake holly 600 700r4 street and strip shift kit
mostly stock 87 z28:305 with 700r4 10 bolt rear with 3.23 rear gears
mods comp cam and holly 600
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Old 10-26-2013, 02:48 AM   #6
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You just need valve seals. They cost maybe $10 and take 15 min to change with the heads off. It can be done with the heads on but takes alot longer
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Old 10-26-2013, 03:02 AM   #7
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I honestly read the title of this thread without the "s" in "heads".
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Old 10-26-2013, 03:03 AM   #8
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I honestly read the title of this thread without the "s" in "heads".
lol glad I wasn't the only one
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Old 10-26-2013, 03:03 AM   #9
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I honestly read the title of this thread without the "s" in "heads".
xD as did i
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Old 10-26-2013, 02:22 PM   #10
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I agree you need new valve seals. I'd change them without removing the heads. It's a lot more work if you remove the heads. Not to mention if you don't get everything super clean you have the potential for leaks.
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Old 10-27-2013, 06:36 PM   #11
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I agree you need new valve seals. I'd change them without removing the heads. It's a lot more work if you remove the heads. Not to mention if you don't get everything super clean you have the potential for leaks.
I'm not wanting to mess with stock heads considering I only know how to unbolt and bolt heads on but I've found a set of vortec heads in good shape should they be a good set of heads I know I will need to buy a new intake
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87 iroc z28 dd:305 with 700r4 and 9bolt rear 3.08gears
current mods comp cam performer rpm intake holly 600 700r4 street and strip shift kit
mostly stock 87 z28:305 with 700r4 10 bolt rear with 3.23 rear gears
mods comp cam and holly 600
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Old 10-27-2013, 08:02 PM   #12
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I'm not wanting to mess with stock heads...but I've found a set of vortec heads...
Vortec's are stock heads...albeit better performers than the heads you have, but stock none the less...

Vortec's decrease in flow from .500 lift to .550 lift so check your cam lift and duration...you'll need to know these numbers anyway to see if the springs are what you need...and...

What do you really know about engine's? Before you spend any money and just throw stuff on the car (that will probably break it), start reading and FULLY understanding just why people put the engine combo's together that they do. Read how engines work, read how to correlate parts with performance, and I don't mean pose an open question on a car forum that would take a novel to answer...

To say Vortec's are what you need is an impossible to answer question because you have no plan, you have no goal, and, frankly, you have no clue (no offense, just saying). It's one of the reason why people lob comments at you like "I'm tired of all the idiotic threads"....

Sit down (like the rest of us did), pick up a book and start reading...put 2+2 together and figure out a goal...and "going faster" isn't it...

None of this is meant to be a condescending, just truthful...
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Old 10-28-2013, 12:38 AM   #13
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I agree completely. The internal combustion engine is very simple yet extremely complicated. Anyone can bolt an engine together and odds are it'll start up and run. But to get the full potential from any engine you have to do some serious research. All of the "pieces" have to work together to run properly and make serious horsepower. You can bolt on the best flowing heads you can find, but if you don't have an intake that flows equally as well, or a cam that has enough lift and duration to open the valves and let the air into the combustion chamber, etc, etc,.... your wasting time and money and probably hurting the performance of your engine. It's great that you have the desire to make your car faster, but you need to study engine theory and understand what's actually happening inside your engine. This takes years and a lot of trial and error. Actually it's never ending, you'll always be learning something new. SA Design has some really good books with pages and pages of illustrations for making power in sbc. You can get them at almost any book store that has an automotive section.
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