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    Author Topic: Stroking a 383 to 496  (Read 2927 times)

    Offline cudabob496

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    Stroking a 383 to 496
    « on: June 26, 2016 - 04:10:04 PM »
    New Car Craft has an article on stroking a 383 to 496
    « Last Edit: June 29, 2016 - 01:37:08 AM by cudabob496 »
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    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000


    Offline Sleepychallenger

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    Re: Stroking a 383
    « Reply #1 on: June 27, 2016 - 03:56:34 PM »
    gonna have to find that issue. Is that using the 440 source kit?
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    Offline cudabob496

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    Re: Stroking a 383
    « Reply #2 on: June 27, 2016 - 05:13:45 PM »
    Quote from: Sleepychallenger on June 27, 2016 - 03:56:34 PM
    gonna have to find that issue. Is that using the 440 source kit?

    Yes
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    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000

    Offline kato

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    Re: Stroking a 383
    « Reply #3 on: June 27, 2016 - 08:10:25 PM »
    cudabob
    what kinda 1/4 mile times are you laying down??
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    Offline cudabob496

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    Re: Stroking a 383
    « Reply #4 on: June 28, 2016 - 02:39:38 AM »
    I only street race, and don't take it to the drag strip.  It should have over 600 hp, and
    I have the car weight down to 3250.  Plus the cam will allow winding to 6500 rpm.
    I'm sure if someone wanted to beat the snot out of it, it might dip into the 10's, but won't
    be me, as I'm trying to make it last as long a possible as is, before having to do any expensive
    rebuilding.
    Logged
    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000

    Offline cudabob496

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    Re: Stroking a 383 to 496
    « Reply #5 on: June 29, 2016 - 03:58:59 PM »
    what? at the end of the article, the engine makes 311 hp???????
    Logged
    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000

    Offline Moparal

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    Re: Stroking a 383 to 496
    « Reply #6 on: June 29, 2016 - 04:46:11 PM »
    Chassis dyno?  about 375 at flywheel or so.  But not using your choice of cam, pistons and such, or your type of heads. 
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    Offline Sleepychallenger

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    Re: Stroking a 383 to 496
    « Reply #7 on: June 30, 2016 - 02:40:54 PM »
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    Offline Racer57

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    Re: Stroking a 383 to 496
    « Reply #8 on: June 30, 2016 - 03:53:58 PM »
    Dumb question so please forgive my ignorance................

    If strokers are so great, why didn't the factory build engines to these specs ? Does the old saying "You can't get something for nothing" apply ?
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    Offline cudabob496

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    Re: Stroking a 383 to 496
    « Reply #9 on: June 30, 2016 - 05:34:26 PM »
    they had to make cars to satisfy the masses, and they had to control cost, I suspect.
    Logged
    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000

    Offline Moparal

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    Re: Stroking a 383 to 496
    « Reply #10 on: June 30, 2016 - 05:43:51 PM »
    when they invented their engine it had a stroke. Cadilac had a 500 and others had big cubes and strokes way back when. Anything can be invented
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    Offline Chryco Psycho

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    Re: Stroking a 383 to 496
    « Reply #11 on: June 30, 2016 - 08:09:25 PM »
    Chrysler tended to over engineer everything .have you looked a t a small block ford or chev beside a 340/360 block ? The Mopar block is a Lot bigger allowing a better starting point for lightening internal parts & increasing displacement especially with the extra tall deck heights . yes you give up some lngevity & add side loading but most of these engines are not going to be driven 100,000+ miles like the factory intended & I bet they still will go 100,000+ !
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    Challenger - You`ll wish You Hadn`t

    Offline cudabob496

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    Re: Stroking a 383 to 496
    « Reply #12 on: July 01, 2016 - 02:33:17 AM »
    mag had misprint, is about 520 hp
    Logged
    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000

    Offline todd383

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    Re: Stroking a 383 to 496
    « Reply #13 on: July 01, 2016 - 09:17:06 PM »
    I did the 496 to my 383 2 years ago,  it put down over 480 rwhp and 490 rwtq,  and has 16 in vac for power brakes ,and I put over 10,000 of hard miles on it too, it's a awesome package!  No regrets doing it, and it will blow the tires off at 50 mph!  Lol,  all I can say is its alot better then the 383!
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    Offline cudabob496

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    Re: Stroking a 383 to 496
    « Reply #14 on: July 01, 2016 - 09:40:01 PM »
    Quote from: todd383 on July 01, 2016 - 09:17:06 PM
    I did the 496 to my 383 2 years ago,  it put down over 480 rwhp and 490 rwtq,  and has 16 in vac for power brakes ,and I put over 10,000 of hard miles on it too, it's a awesome package!  No regrets doing it, and it will blow the tires off at 50 mph!  Lol,  all I can say is its alot better then the 383!

    what cam do you run?
    Logged
    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000
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