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Discussing NEW MOTOR BUILD in the 5.0 Mustangs Forum. i have a block and crank now the block is a 302 .040 over 4 ...

       

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Old January 30th, 2007, 08:02 PM   #1
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NEW MOTOR BUILD


i have a block and crank now the block is a 302 .040 over 4 bolt main with main girdles and lifter valley girdles and i will be using flat top hypruetec pistons, forged rods, edelbrock victor jr heads, comp high energy 292 cam, magnum roller tip rockers from comp cam, victor jr intake, 850cfm 4bbl edelbrock carb, and flowtech long tubes also a full msd ignition. how much HP can i expect from this setup?? roughly?? im thinkin no more than 300
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Old January 30th, 2007, 08:12 PM   #2
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it sounds like you are gonna have to much carb for a n/a 308. as for hp it should make 300 or so
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Old January 30th, 2007, 10:10 PM   #3
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Carb is too big and I wouldn't use that cam. What kind of block is it? Must be a motorsport or other aftermarket block if it has 4 bolt mains. Why buy a good block and skimp on the rest?
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Old January 30th, 2007, 10:28 PM   #4
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I'd say 225hp. but with the MSD 300 sounds right. Good choice on the hypereutectic pistons, the 4 bolt main should be einough to handle them.
 
Old January 30th, 2007, 10:37 PM   #5
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its a block from the local speed shop the first and last mains are 2 bolt but the inner are 4. its been bored out and cleaned with new cam bearings and freeze plugs. as for the carb, 650 wasnt big enough so i want something i can work with. i can always turn it way down but when i do more mods to the motor i want enough without spending another $500-$600. besides nobody said i might not spray at the track. as for the cam i want one with a rough idle so it sounds mean but i want to produce good power. if anybody has any tips then let me know something. i know i am going to have to have new heads now or atleast one so instead of getting stock i am going to get the victor jr's for sure. the specs are 210 intake and 75 exhaust with a 60cc combustion chamber. the valve sizes are 2.05 intake and 1.6 exhaust with dual springs. the maximum valve lift is .650in. the cam i am now looking at is the
XE284H-10 comp cam. duration is 284 intake and 296 exhaust with a valve lift of .541int/.544exh. sounds like it will work to me. anybody have any pointers??? also how do i put pictures in my post i took off my passenger side head today to show one piston shattered and one with a hole in it and i would like to post the pics
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Old January 30th, 2007, 11:07 PM   #6
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I'd say 225hp. but with the MSD 300 sounds right. Good choice on the hypereutectic pistons, the 4 bolt main should be einough to handle them.
Good choice on the pistons!! Freekin funny dude good 1!!!!
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Old January 30th, 2007, 11:08 PM   #7
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Well its not a 4 bolt main block then. If it was the first and last caps would be the ones with 4 bolts. They are the main caps...
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Old January 31st, 2007, 06:27 PM   #8
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Originally Posted by JBIGBOOTSY
I'd say 225hp. but with the MSD 300 sounds right. Good choice on the hypereutectic pistons, the 4 bolt main should be einough to handle them.
Why would it make 75 more horsepower with MSD? MSD ignition systems don't add a plethora of horsepower.
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Old January 31st, 2007, 06:27 PM   #9
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Originally Posted by Stangzilla
Well its not a 4 bolt main block then. If it was the first and last caps would be the ones with 4 bolts. They are the main caps...
Alot of blocks are only 4 bolt on the middle 3 and two bolt on the first and last.
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Old January 31st, 2007, 07:01 PM   #10
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Originally Posted by Darrell
Originally Posted by JBIGBOOTSY
I'd say 225hp. but with the MSD 300 sounds right. Good choice on the hypereutectic pistons, the 4 bolt main should be einough to handle them.
Why would it make 75 more horsepower with MSD? MSD ignition systems don't add a plethora of horsepower.
I wuz being funny, because of hypereutectic pistons low strength. I thought that it was an odd engine combo.
 
Old January 31st, 2007, 07:17 PM   #11
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Originally Posted by Stangzilla
Good choice on the pistons!! Freekin funny dude good 1!!!!
whats wrong with hypereutectic pistons?
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Old January 31st, 2007, 07:40 PM   #12
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the are really ok, but they have a high silica content to make less thermal expansion, that is a good thing. You can do stuff like run tighter cleareance, but the downside is that they are brittle and can resist less detonation. they are not really good for power adders or high comp.
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Old January 31st, 2007, 07:44 PM   #13
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ok good, I'm planning on rebuilding my engine this summer and was planning on using those since I will remain N/A. I was worried there for a minute.
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Old January 31st, 2007, 08:02 PM   #14
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Originally Posted by Grimmy
ok good, I'm planning on rebuilding my engine this summer and was planning on using those since I will remain N/A. I was worried there for a minute.
Think it thru, you might get seduced by the juice. J\K
 
Old January 31st, 2007, 08:37 PM   #15
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Alot of blocks are only 4 bolt on the middle 3 and two bolt on the first and last.
Yeah I know that but like I said he said it was a 4 bolt main.. Because the center caps have 4 bolts.The first and last caps are the mains and he said they have 2 bolts...meaning its a 2 bolt main block..
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Old January 31st, 2007, 09:48 PM   #16
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Originally Posted by Stangzilla

Yeah I know that but like I said he said it was a 4 bolt main.. Because the center caps have 4 bolts.The first and last caps are the mains and he said they have 2 bolts...meaning its a 2 bolt main block..
No, all of the main caps are the "mains". If the middle 3 are 4 bolt caps, the block is a 4 bolt main block. That is how all of the factory Chevy 4 bolt blocks are and that is also how some of the SVO blocks are.
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Old January 31st, 2007, 10:13 PM   #17
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carb is way to big stock 5.0 i think came with 650 cfm and what your building basically that but with a few good things.. Might be better off buying a 5.0 motor get it bored and just part out what you dont want so you can make some money and just build up from that block.
 
Old January 31st, 2007, 10:15 PM   #18
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so then that block is not a 4 bolt main then?
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Old January 31st, 2007, 10:29 PM   #19
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Its a 4 bolt block, run a 750 the vic head will be happy with that, and make sure to follow KB's hyper giudelines for ring gap or you WILL pop the head off those hyper pistons. Yes you can run tighter piston clearances but guys gap them just like a forged slug and pop the heads off the hypers. When you can buy a probe srs 2618 piston for 400 It really doesnt make any sense to run those kb's.
 
Old January 31st, 2007, 10:35 PM   #20
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+1
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