Dart 496 or 540 - Team Camaro Tech
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post #1 of 15 (permalink) Old Jan 27th, 10, 02:15 PM Thread Starter
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Dante'
 
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Dart 496 or 540

Planned on reduilding my 427 into a 468. After dissassembling the motor I discovered that the cylinder walls are trashed. Thinking on getting a Dart short block. 496 and 540 are the same price. Common sense says 540. What to do.

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post #2 of 15 (permalink) Old Jan 27th, 10, 05:14 PM
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Re: Dart 496 or 540

540 all the way!!!!!

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post #3 of 15 (permalink) Old Jan 27th, 10, 05:42 PM
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Re: Dart 496 or 540

no replacement for displacement 540
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post #4 of 15 (permalink) Old Jan 27th, 10, 05:49 PM
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Re: Dart 496 or 540

Is this a serious question?


Just kidding. You need to take a look at your whole setup and see what each is capable of, then plan accordingly. Will the 540 tip past what your powertrain and fuel system are rated for? If so, will you spend the money to get them up to snuff? If you're good to go either way then the choice would seem pretty easy. Is that on a tall teck block and will it fit?

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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post #5 of 15 (permalink) Old Jan 27th, 10, 05:52 PM
kt
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Re: Dart 496 or 540

lol....if your gonna go big....go bigger....
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post #6 of 15 (permalink) Old Jan 27th, 10, 09:05 PM
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Re: Dart 496 or 540

what heads are you planning on using? if they can't flow enough for that 540 to breathe in the powerband your trans and rear are set up for you should go 496. otherwise, 540 all the way, but if your rear end, transmission, and rear suspension arent set up properly for it you'll just break stuff and fry tires while the guy next to you with the small block hooks his stuff up and wins.
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post #7 of 15 (permalink) Old Jan 28th, 10, 12:06 AM Thread Starter
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Dante'
 
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Talking Re: Dart 496 or 540

Have not decided on heads yet although leaning towards AFR 305s. Camaros got 3 inch Magnaflow exhaust, Tremec TKO 600, Moser 12 bolt rear with 3.55 gear and frame connectors. The only concern I have is my fuel system I have a robb mac 1/2 inch sending unit with 8an braided line going to a Carter 170 high flow mechanical pump.

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post #8 of 15 (permalink) Old Jan 28th, 10, 01:40 AM
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Steiner
 
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Re: Dart 496 or 540

Pfffft. 540 all the way then. Next question.

1/2" or -8 is supposed to be good for around 700hp.

Is it going to be a tall deck or stock deck? I think tall decks have some fitment issures that have to be addressed.

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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'02 Z/28 vert-stock-sold and totaled
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post #9 of 15 (permalink) Old Jan 28th, 10, 07:19 AM Thread Starter
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Dante'
 
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Re: Dart 496 or 540

Stock deck height.

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post #10 of 15 (permalink) Old Jan 28th, 10, 08:19 AM
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Todd
 
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Re: Dart 496 or 540

I agree with some here, is the rest of the car set up to handle a 540? If not, will you have the funds to swap it out. A decent 540 should put you over 700hp which brings different fuel systems, clutches, heads, carbs into play.
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post #11 of 15 (permalink) Old Jan 28th, 10, 09:58 AM Thread Starter
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Dante'
 
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Re: Dart 496 or 540

My car is set up to handle the 540 but I'm still not sure which way I am going. Primarily street driven if it was a strip car 540 no question. What engine combo are you going with on your 69 to replace your 489?www.photobucket.com/Dantesrides

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post #12 of 15 (permalink) Old Jan 28th, 10, 10:41 AM
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Todd
 
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Re: Dart 496 or 540

I'm staying with a 489 in a ZL1 block. I can re use my heads, carb, hopefully fuel pump.
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post #13 of 15 (permalink) Old Jan 28th, 10, 10:48 AM Thread Starter
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Dante'
 
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Re: Dart 496 or 540

Thats good, saves money. Thats the bad point if I go big, my carb, roller cam, and fuel system are too small.

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post #14 of 15 (permalink) Old Jan 28th, 10, 10:57 AM
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Todd
 
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Re: Dart 496 or 540

The same crank is used in a 496 and 540. If you have engine trouble or decide it's time, you can reuse the crank and rods as long as they are quality pieces.
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post #15 of 15 (permalink) Old Jan 28th, 10, 05:44 PM
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Steiner
 
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Re: Dart 496 or 540

I don't know man. If it's primarily street, just use less cam to keep the power band on the milder side since HP is a function of torque and RPM. Then enjoy all that torque. The 540 should give you what....at the very minimum 50 lb ft more than the 496? For the same price?

Now this is just me, but I'd go with the biggest I could on the budget for a street car so the torque could be kept as high as possible and then work with the cam to keep the hp in check. Actually, I just went through all that with mine and put a deposit down yesterday.

'69 Camaro
Dart 400-AFR 195-224/224 HR-Powerjection III TB with F.A.S.T. Sportsman XFI
TKO 600-Moser 3.42-Detroit Truetrac
500hp/538lbft

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'69 Camaro Beater-SFT 327-M20-Moser 4.10-sold
'02 Z/28 vert-stock-sold and totaled
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