Author Topic: Building a RB Stroker - need some help  (Read 1743 times)

KTO

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Building a RB Stroker - need some help
« on: March 23, 2006 - 08:42:17 AM »
Hey Everyone,

I know this isn't E body related but I thought I'd ask anyway.

I just bought a 64 Sport Fury and am planning on building a max wedge stroker motor for it. I just need some advice on the motor...I can assemble a stock motor but I'm a bit dumb still in the world of engine building.

I am planning on using a 440 block with stage III max wedge heads, max wedge cross ram, and max wedge cast exhaust manifolds.

I want the car to be a naughty street driver, not much driving past 5500rpm. I am wondering what stroke and cam I should use with the stock Stage III stuff.

I just read in Mopar Muscle Mag that the perfect stoke for a RB engine is somewhere between 4.125" and 4.25". That would put the displacement somewhere between 512 and 543 ci. I am just wondering if this level of stroke would be stressing the engine with the stock max wedge heads and exhaust manifolds???

I would also like to use a hydraulic cam and am wondering how much lift I should go with. I want a lot of low end power but I would like a little lope. I have the 284dur 484lift purplecam in my 383 and is sounds nasty, however my old man has the same cam in his 440 cuda and it sounds pretty mild. I have been reading through the Mopar Performance engine book looking for some info but their cam recommendations only go up to 440 ci.

Anyway, I'm starting to ramble, basically I'm just looking for advise on what stoke and hydraulic cam you would use with a RB block with maxwedge heads (for a street driver)

Thanks!
« Last Edit: March 24, 2006 - 06:25:21 AM by KTO »




Offline KellysCuda aircard

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Re: Building a RB Stroker - need some help
« Reply #1 on: March 23, 2006 - 08:57:33 PM »
Go here... http://www.440source.com/ , then get the biggest , nasty, lumpy cam you can find....and nitro, lots and lots of nitro...muhahahahahahaha......just kidden man. 440 source has a nice list of strokers.

Offline MOPARHOUND

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Re: Building a RB Stroker - need some help
« Reply #2 on: March 24, 2006 - 03:03:40 PM »
Hey Everyone,

I know this isn't E body related but I thought I'd ask anyway.

I just bought a 64 Sport Fury and am planning on building a max wedge stroker motor for it. I just need some advice on the motor...I can assemble a stock motor but I'm a bit dumb still in the world of engine building.

I am planning on using a 440 block with stage III max wedge heads, max wedge cross ram, and max wedge cast exhaust manifolds.

I want the car to be a naughty street driver, not much driving past 5500rpm. I am wondering what stroke and cam I should use with the stock Stage III stuff.

I just read in Mopar Muscle Mag that the perfect stoke for a RB engine is somewhere between 4.125" and 4.25". That would put the displacement somewhere between 512 and 543 ci. I am just wondering if this level of stroke would be stressing the engine with the stock max wedge heads and exhaust manifolds???

I would also like to use a hydraulic cam and am wondering how much lift I should go with. I want a lot of low end power but I would like a little lope. I have the 284dur 484lift purplecam in my 383 and is sounds nasty, however my old man has the same cam in his 440 cuda and it sounds pretty mild. I have been reading through the Mopar Performance engine book looking for some info but their cam recommendations only go up to 440 ci.

Anyway, I'm starting to ramble, basically I'm just looking for advise on what stoke and hydraulic cam you would use with a RB block with maxwedge heads (for a street driver)

Thanks!

Just posted my engine history in the proven combo's section.  Take a look, at my ups and downs.

The 440 blocks main journals will start to come apart around 650 horsepower.  With your street driving and no more RPM than you plan to turn should work okay.

Cam selection, hmmmmmmmm.......... ideally you want the lift to correspond with the heads ability to flow air, don't know much about max wedge heads. 

Strokers "eat" duration, a radical cam in 383 is a moderate cam in a 440 is a mild cam in a 500 stroker.  245 @ .050" or more duration is the general consensus for the RB strokers. 

Look at the Comp Cams XE285HL or XE295HL dual pattern offerings.  The Engle K-62HYD and K-64HYD single pattern hydraulics would also be canidates.  These are all what are referred to as "fast rate of lift" cams, great for making power, but longevity may be an issue.