Re: changing 440 out for 499 low deck issues?
[Re: CUDA8U]
#1352394
12/16/12 01:24 AM
12/16/12 01:24 AM
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Joined: Mar 2005
Posts: 1,630 North Central Florida
eightlitermopar
top fuel
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top fuel
Joined: Mar 2005
Posts: 1,630
North Central Florida
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Your headers will sit lower (and possibly even fit better around torsion bars, etc.) with the B motor. This depends on what headers you have of course. Everthing else you mentioned will bolt right on like the RB motor. eight
Mopar or no car
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Re: changing 440 out for 499 low deck issues?
[Re: CUDA8U]
#1352396
12/16/12 01:42 AM
12/16/12 01:42 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Assuming the same heads or head type with the same ex port height location. The "B" will move the headers/manifolds in/down 3/4" in a V pattern as the V of the deck is shrinking that amount. Might be able to check your tube clearances now & see if they will handle that amount of change
live every 24 hour block of time like it's your last day on earth
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Re: changing 440 out for 499 low deck issues?
[Re: CUDA8U]
#1352398
12/16/12 11:43 AM
12/16/12 11:43 AM
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Joined: Oct 2012
Posts: 1,106 Northeast
VincentVega
super stock
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super stock
Joined: Oct 2012
Posts: 1,106
Northeast
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since the question has already been answered, what kind of 499 are you using? Is it a kit (i.e. 440 source), home-brewed, etc? Do you like it? Are the wrist pins in the oil ring land area?
Only reason I ask is I am building a B block stroker, too, and I'm trying to learn the pros/cons and tricks
Looking for 1975 through 1978 B body 4 door sedan sheet metal or parts cars - monaco, fury, coronet. Please let me know
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Re: changing 440 out for 499 low deck issues?
[Re: RapidRobert]
#1352400
12/16/12 12:54 PM
12/16/12 12:54 PM
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Joined: Oct 2012
Posts: 1,106 Northeast
VincentVega
super stock
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super stock
Joined: Oct 2012
Posts: 1,106
Northeast
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470 is what I have been leaning towards, for those exact reasons. The pistons in those 500" kits are like an inch tall. I can't imagine that has any benefit aside from bob weight. there's almost nothing to prevent piston slap, it's a weaker piston, there's higher side-loading.
Since my application is a street engine, w/ pump gas, I want to build for longevity. In a race application, the issues I mentioned can be probably be planned for. Hard to give up 30 cubes though.
Looking for 1975 through 1978 B body 4 door sedan sheet metal or parts cars - monaco, fury, coronet. Please let me know
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Re: changing 440 out for 499 low deck issues?
[Re: VincentVega]
#1352402
12/16/12 02:31 PM
12/16/12 02:31 PM
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Joined: Aug 2003
Posts: 43,157 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
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Quote:
470 is what I have been leaning towards, for those exact reasons. The pistons in those 500" kits are like an inch tall. I can't imagine that has any benefit aside from bob weight. there's almost nothing to prevent piston slap, it's a weaker piston, there's higher side-loading.
Since my application is a street engine, w/ pump gas, I want to build for longevity. In a race application, the issues I mentioned can be probably be planned for. Hard to give up 30 cubes though.
My first 400 block pump gas low deck street stroker has 6.800 long rods with a 4.25 stroke (511 C.I.), pistons are very light, 458 grams with no pins or rings but with the oil ring spacer The pistons come out of the bottom of the cylinders a lttle but it has not shown any conscequences form that I ended up swapping the 4.25 stroke crank to a 4.300 stroke(518 C.I. now ) to move the pistons up to zero deck after swapping the iron heads to a set of Eddy RPM aluminum heads C.I. is your freind if your wanting to make power Lots of different ways to make power I've made the same power with different heads using a 470 C.I.(3.910 stroke) as the bigger pump gas motor with similar M.W. ported heads, the smaller motor had more compression and a tunnel ram with two 750 CFM carbs, race gas instead of using a single plane and a single 1050 Dominator on pump gas on the larger 518 C.I. motor
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: changing 440 out for 499 low deck issues?
[Re: Cab_Burge]
#1352403
12/16/12 02:39 PM
12/16/12 02:39 PM
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Joined: Oct 2012
Posts: 1,106 Northeast
VincentVega
super stock
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super stock
Joined: Oct 2012
Posts: 1,106
Northeast
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that's great information, thank you. I do plan on Edelbrock Performer RPM heads (there's really nothing else I'm considering, actually)
Looking for 1975 through 1978 B body 4 door sedan sheet metal or parts cars - monaco, fury, coronet. Please let me know
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Re: changing 440 out for 499 low deck issues?
[Re: CUDA8U]
#1352404
12/16/12 03:07 PM
12/16/12 03:07 PM
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Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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Headers can be a problem depending on the size and brand. I used the mini-starter, but a regular starter should fit. Both my low deck engines had heads with raised exhaust ports (B1-B/s, and Victor heads) and I used the Hooker 2" super comp headers for a 440, but I did have to ding them in a few places. If it's in the budget, TTI makes headers for specific head/deck height combinations. The low deck will need a different intake manifold. Fuel pump, motor mounts, oil pan, will interchange. The length of the pistons in my 500 stroker is 2.29" from the bottom of the skirt to the top of the piston. The pin is in the oil ring land, but that is not an issue. For the street with an engine that won't be reved real high, the low deck 512 will make tons of torque. Having too much power can get expensive if you have to beef up the drivetrain (trans, driveshaft, rear axle.)
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