496 help - Chevelle Tech
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post #1 of 44 (permalink) Old Mar 12th, 19, 4:27 PM Thread Starter
 
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496 combo help

Hey guys I pretty much have my heart set on building a 496 for my 1984 Buick Regal that I just purchased. I’ve been online for a few days trying to find a good combo and majority of my searches bring me here. Could somebody chime in and give me some guidance on picking the right cam to match the heads and intake I want to run, or maybe a better combo. So far I’m looking at this rotating assembly https://www.skipwhiteperformance.com...2pc-rms_90126/, with the Promaxx 320cc heads(bare) and Weiand stealth dual plane intake. I’m hoping to make 600+hp with this set up. Car is gonna be a weekend cruiser and a occasional visit to the track.Any useful input would be greatly appreciated
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post #2 of 44 (permalink) Old Mar 12th, 19, 10:46 PM
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Re: 496 help

Look through some of the other combinations on the site. Give more credence to those with time slips or dyno sheets. Many good combinations have been covered over the years. Pay close attention to their heads, run the smallest port that will vine you the power you are looking for. Too large of a head or camshaft are common ways to create a sluggish pig that is only good for turning heads at the local cruise.

Steve R
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post #3 of 44 (permalink) Old Mar 12th, 19, 11:38 PM
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Re: 496 combo help

go down to the vendor threads, Most here would recommend VortecPro, Mark's engines are top notch, good luck!!
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post #4 of 44 (permalink) Old Mar 12th, 19, 11:55 PM Thread Starter
 
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Quote:
Originally Posted by LeoP View Post
go down to the vendor threads, Most here would recommend VortecPro, Mark's engines are top notch, good luck!!
One of my Facebook friends recommended him.I’m kind of a hands on guy that wanted to build something of my own.Im pretty much building this car from the ground up and I was trying to do majority of the work myself
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post #5 of 44 (permalink) Old Mar 13th, 19, 12:09 AM Thread Starter
 
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Originally Posted by Steve R View Post
Look through some of the other combinations on the site. Give more credence to those with time slips or dyno sheets. Many good combinations have been covered over the years. Pay close attention to their heads, run the smallest port that will vine you the power you are looking for. Too large of a head or camshaft are common ways to create a sluggish pig that is only good for turning heads at the local cruise.

Steve R

How do I find the older build posts? I’m new to the site and haven’t quite figured out how to navigate it yet
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post #6 of 44 (permalink) Old Mar 13th, 19, 12:13 AM
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post #7 of 44 (permalink) Old Mar 13th, 19, 12:22 AM
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Re: 496 combo help

If you're set on building it yourself I would talk to Mike Lewis. If I can't talk Mark into building something for me I buy the parts from Mike and build it myself. His prices are great, he'll get you what you NEED and he'll stand behind it. The vendor you posted may not do that, from what I hear. I have no personal experience of this, though.

https://www.lewisracingengines.com/
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70 Camino...Roller

69 Malibu Stock 307, Reverse Manual TH350, 4,500 Stall Edge Converter, 4.56 Spool 35 Spline 12 Bolt

76 C20 VortecPro 496 628HP 655 lb/ft TH400 Edge Converter, 4.10 14 bolt

Last edited by Tommy the Cat; Mar 13th, 19 at 12:49 AM.
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post #8 of 44 (permalink) Old Mar 13th, 19, 6:53 AM
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Gene
 
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Re: 496 help

Simple thing,before you buy a rotating assembly , maybe make sure you find a block that goes .100" over? Have a machinist in mind yet? You'll need one.

PS My bad, I ASSUMED all 496 were actually +.100" blocks, that kit shows +.060". I believe Skip White is a new member here as well.

Simply try "496 build" in the search window.

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post #9 of 44 (permalink) Old Mar 13th, 19, 6:57 AM
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Re: 496 help

Simple - rotating assembly that gives around 10:1, alum heads 300cc or smaller (I like the 265 AFR), 230ish HR cam, single plane. done.
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post #10 of 44 (permalink) Old Mar 13th, 19, 12:36 PM Thread Starter
 
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Originally Posted by 427L88 View Post
Simple thing,before you buy a rotating assembly , maybe make sure you find a block that goes .100" over? Have a machinist in mind yet? You'll need one.

PS My bad, I ASSUMED all 496 were actually +.100" blocks, that kit shows +.060". I believe Skip White is a new member here as well.

Simply try "496 build" in the search window.
Thanks for your input. I do have a machinist in mind and I’m on my way now to pick up a block that a coworker is gonna let me get for 50 bucks
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post #11 of 44 (permalink) Old Mar 13th, 19, 2:46 PM
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Re: 496 help

If it was me, I would go to 489 if the block is standard bore. Don't bore it more than you have to.
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post #12 of 44 (permalink) Old Mar 13th, 19, 2:58 PM
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Re: 496 help

Quote:
Originally Posted by bracketchev1221 View Post
If it was me, I would go to 489 if the block is standard bore. Don't bore it more than you have to.
Same here bore .030 if standard bore block.
Used a couple of kits from Skip White in engines I assembled for friends and one I sold decent for the money all are still running one since 2010(and that one had pro Comp rods before he started using scat).
I would go with Brodix race rites 312 over Promaxx, Brodix is Us cast and all sets I used has worked great check with Mike Lewis aka wolfplace or Eric weingartner they might save you a buck on the heads recomend size 270 ovals 294 or 312 rec and Mike can pick you a cam that fits your goal.
https://lewisracingengines.com/
Weingartner Racing
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post #13 of 44 (permalink) Old Mar 13th, 19, 3:20 PM
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Re: 496 help

I used Mile Lewis for the rotating assembly in my 496, gosh probably 10 years ago, and everything was absolutely top notch. huge thumbs-up for Lewis Racing Engines.

FWIW, I'm having a hard time believing the OP scored a virgin, standard bore 454 block for $50.

Mike

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post #14 of 44 (permalink) Old Mar 13th, 19, 4:26 PM Thread Starter
 
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Originally Posted by Georgia69 View Post
I used Mile Lewis for the rotating assembly in my 496, gosh probably 10 years ago, and everything was absolutely top notch. huge thumbs-up for Lewis Racing Engines.

FWIW, I'm having a hard time believing the OP scored a virgin, standard bore 454 block for $50.
Block was a 289 2 bolt main bored .40 over already. Come to find out it’s missing the main caps. When i took it to the machine shop the machinist told me I would have a lot of money in that block.
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post #15 of 44 (permalink) Old Mar 14th, 19, 3:03 AM
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Re: 496 help

Quote:
Originally Posted by Georgia69 View Post
I used Mile Lewis for the rotating assembly in my 496, gosh probably 10 years ago, and everything was absolutely top notch. huge thumbs-up for Lewis Racing Engines.

FWIW, I'm having a hard time believing the OP scored a virgin, standard bore 454 block for $50.
Not really. A couple of years ago I stopped by my friends house on the way to a Wednesday night race. He does a lot of scrap, in front of his garage was a standard bore 454 block that spun a rod bearing. He was about to load it with some other metal and bring it to a recycling center. I offered to buy him lunch at a later date for the block, he agreed and put it in the bed of my truck with a fork lift. Within an hour of arriving at the track two people I knew tracked me down and asked about the block. I sold it to one of them for $100 on the spot. The guy I got it from said he wonít touch something that is potential scrap more than three times, with the third being itís trip to the recycler. In his mind, any more than that and itís not worth the time to load and unload something as well as spend the time dealing with potential buyers on the phone or Internet, then in person.

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