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Re: stock block stroker big block how big do you like them
[Re: earthmover]
#942405
03/07/11 03:21 AM
03/07/11 03:21 AM
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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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Quote:
nice build there 451mopar..what do you think the new motor will run and whats your weight??? mike 
Same '71 Charger as before, 4,150 pounds with me and 1/2 tank of fuel. Traction and the old limited slip diff will be a problem. When I was in Las Vegas, the limited slip diff was making alot of poping sounds when I launched the car.
I plan to have it out for King Street on May 1st.
The extra 100+ HP should put me right around 11.50, which is all the car is teched for because I don't have a roll bar.
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Re: stock block stroker big block how big do you like them
[Re: earthmover]
#942410
03/08/11 03:52 PM
03/08/11 03:52 PM
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Joined: Aug 2003
Posts: 43,274
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,274
Bend,OR USA
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Quote:
whats the thoughts on adding cross bolt main??? i saw the post that josh had a few days ago where they had put them in...i have a set now..mike 
I'll give you my  on using a cross bolt main in a non crossbolt block  The reasons being that you have to drill through the main webs to make the holes for the cross bolts which ends up weaking the block, NOT GOOD If you look at the other blocks(426 hemi and Ford 427 FE blocks) that use cross bolt mains instead of the conventional additional two bolts into the main webs you will see that the crossbolt blocks have bosses cast into the block for stengthening that are machined to accept the crossbolt main caps with a interference fit to help disapate vibrations and hold that main cap in place. The other thing I keep in mind when looking a patching a problem with blocks is where is the block failing, in the RB motors, 440, 426W and 413 blocks they crack above the mains into the bottoms of the cylinders, not in the webbing going to the oil pan rails  The webbing cast into the blocks to the oil pan rails are stiffeners design to add strength to the main web, drilling a hole through them will take away materails which will only create stresss risers and weaken the main webs   Don't do it
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: stock block stroker big block how big do you like them
[Re: earthmover]
#942412
03/08/11 04:16 PM
03/08/11 04:16 PM
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Joined: Aug 2007
Posts: 2,449
nc
earthmover
OP
top fuel
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OP
top fuel
Joined: Aug 2007
Posts: 2,449
nc
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this is a good info from you guys and i do thank you all. ..as far as the valve train i have most of the parts for the build .. parts list -1 heads with 2.25 valve (should go 350) t&d 1.6 rockers 440-2 single plan intake with 2" spacer for 4500 carb howards 7.125 alum. rods (mopar bearing) lunati cam 280 @ 50 731 lift with 1.6 rockers 440 block have not done anything to it as of yet being collecting info... also have pushrods that came with the heads off of a 440 build the car this motor will be in is my 70 duster it will have ladder bars,coil overs, and the frontend will be changed over to coild overs and rack,will be useing fiber glass on the hood,bumpers,and maybe the doors,the car is mini tubbed now and have had a 29/10.5w on it before on a 10" rim so i would like tostay around that size tire out back,headers we are going to try and build if we dont find a good set for a good price lol..car will be foot no trans brake so with this combo of parts you guys tell me what you would build.. 
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Re: stock block stroker big block how big do you like them
[Re: earthmover]
#942414
03/08/11 04:39 PM
03/08/11 04:39 PM
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Joined: Apr 2005
Posts: 1,107
Quebec, Canada
Diablo
super stock
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super stock
Joined: Apr 2005
Posts: 1,107
Quebec, Canada
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Quote:
this is a good info from you guys and i do thank you all. ..as far as the valve train i have most of the parts for the build ..
parts list
-1 heads with 2.25 valve (should go 350)
t&d 1.6 rockers
440-2 single plan intake with 2" spacer for 4500 carb
howards 7.125 alum. rods (mopar bearing)
lunati cam 280 @ 50 731 lift with 1.6 rockers
440 block have not done anything to it as of yet being collecting info...
also have pushrods that came with the heads off of a 440 build
the car this motor will be in is my 70 duster it will have ladder bars,coil overs, and the frontend will be changed over to coild overs and rack,will be useing fiber glass on the hood,bumpers,and maybe the doors,the car is mini tubbed now and have had a 29/10.5w on it before on a 10" rim so i would like tostay around that size tire out back,headers we are going to try and build if we dont find a good set for a good price lol..car will be foot no trans brake
so with this combo of parts you guys tell me what you would build..
From what you have listed you kind of have close to what my 496ci was in the pulling truck a few years ago. I had the 2.25 440-1's but were 380flow, and the cam was 760ish. Carb was a 1150 Dom. Comp was up around 14.5/1. Alum main ,J/E pistons BME alum rods, Bryant crank. Rpm's were between 7000-7500.
When I built this engine we were aiming for 800hp.
First year we ran it we cracked a cylinder right at the bottom.
Didn't have the $$$ to buy a better block so we filled a stock block and added a Girdle. Also that year we added a Vacuum pump and a few other little extra's and the engine ended up being around 840ish hp.
The engine lasted 3 hard pulling seasons with no problems with the block. (went to the TS engine after that) But i knew i was running a stock block and it could go BOOM any time. If done right i believe they can last just fine but realize they wont last forever.
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