This is topic Sportsman block hp limit in forum Tech Talk at Northern California Ford Owners .
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Posted by Wild Donkey (Member # 662) on
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What is the Max hp I can put on a sportsman block.
Please say 600rwhp is ok. 
thanx in advance. 
Posted by Blu50Stang (Member # 489) on
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I believe that's cool. I would run a main cap girdle for the hell of it tho.
Posted by Wild Donkey (Member # 662) on
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I was thinkin of the girdle as well but want to find out the limit of the block it's self. Just wanted to use the girdle as extra protection.
Posted by st5150 (Member # 51) on
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600rwhp should be just fine. Make sure the rotating assembly is well balanced and throw a good balancer on it.
Posted by Wild Donkey (Member # 662) on
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nICE TO HEAR IT'S GONNA WORK. MY BALANCER IS A PIONEER HIGH PERFORMANCE ONE. I'VE SEEN SOME BIG HORSEPOWER CARS USE IT.
Posted by John91coupe (Member # 18) on
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Here are my 8 items for keeping a stock block together, they apply to a B block as well.o Avoid detonation
o Use studs on the mains with a girdle
o Premier balance job on the rotating assembly
o Align hone the mains
o Use a non undercut crank if it's a stocker
o Keep RPM down (pulley the blower for maximum boost at under 6500, assuming it's a blower).
o Use a rev limiter that cuts spark, not fuel.
o Don't use solid motor mounts
Posted by PunkINa5.SLOW (Member # 10) on
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quote:
Originally posted by John91coupe:
o Avoid detonation
Owning everthing but the blower and intake that was on Johns last combo I have to attest to the first point. AVOID DETONATION.
lol
too funny
Posted by John91coupe (Member # 18) on
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quote:
Owning everthing but the blower and intake that was on Johns last combo I have to attest to the first point. AVOID DETONATION.
Aah yes! Very true, but the block didn't crack 
.......or did it? 
Posted by PunkINa5.SLOW (Member # 10) on
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John I can take pics of the shattered cylinder wall. I still have to block and often people sit on it while they watch me build theirs So funny thing is your block is my campaign against stock blocks and then what do I go and do??
Use a well prepped stock block
The R blocks and A-4s are just too pricey for folks like me ..........at this point in life
Posted by Wild Donkey (Member # 662) on
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The R blocks and A-4s are just too pricey for folks like me ..........at this point in life [/QB][/QUOTE]
i AGREE JUST TO MUCH. i'LL TRY TO LEARN HOW TO MAKE A SPORTSMAN LAST. I'M PRITTY SURE I CAN MAKE MY COMBO WORK WITH ONE.
Posted by Yellow94GT (Member # 431) on
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What seems to be the going rate for the A4 and R blocks? What kind of HP can they hanlde? Thanks in advance, Drew
Posted by Wild Donkey (Member # 662) on
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aN R302 you can get it for $1,600 delivered to your house. It can hold about 800rwhp. An A4 I heard but not positive it's like $3,000. Crazy a$$ prices.