GM 010/020 Blocks

trmnatr · 03-09-2009, 10:07 PM

How much HP have you Super Stock guys pushed out of 010/020 blocks filled with hardblok to bottom of waterpump with ARP main studs and factory caps in a 327 and in a 350 ?

If you could answer these 3 below that would sum it up
HP ?
RPM ?
CID ?

Also, do you guys know where to find any 3.25" stroke GM cranks ? Large or small journal, if so can you please post a link

Thanks in advance

Aaron Keown · 03-10-2009, 09:16 PM

People have made 600+ horsepower and ran 9000 r.p.m. with good rock blocks,good being the key word there.The thing that sucks about rock blocks the most is you really don't know if you have a good one until you build a high performance engine with one and take the chance of knocking the side out of it..Yes you can use a sonic checker and all that but it still no guarantee.A reasonable number is probably 500-550 h.p and about 8000 r.p.m. I would not go more than 4.070 on the bore size on the block you are talking about.I have also seen brand new engines built with rock blocks knock the side out ,so needless to say I am not really a fan of them.With the price of after market blocks as reasonable as they are any more I really don't see much point in using one unless it is for a budget build.Also,what kind of crankshaft are you looking for,after market or a factory core?

trmnatr · 03-10-2009, 09:26 PM

Quote:

Originally Posted by Aaron Keown

People have made 600+ horsepower and ran 9000 r.p.m. with good rock blocks,good being the key word there.The thing that sucks about rock blocks the most is you really don't know if you have a good one until you build a high performance engine with one and take the chance of knocking the side out of it..Yes you can use a sonic checker and all that but it still no guarantee.A reasonable number is probably 500-550 h.p and about 8000 r.p.m. I would not go more than 4.070 on the bore size on the block you are talking about.I have also seen brand new engines built with rock blocks knock the side out ,so needless to say I am not really a fan of them.With the price of after market blocks as reasonable as they are any more I really don't see much point in using one unless it is for a budget build.Also,what kind of crankshaft are you looking for,after market or a factory core?

GM Steel Crank, small or large journal

Yes, this one dont want to put a ton of money into

Bore will only be 4.030"

Will be sonic checked

Will be filled with hardblok

Will have head/main studs

trmnatr · 03-11-2009, 02:37 AM

these are the pistons we are running. They are 329gram piston, 88gram wrist pin, .043" .043" 3mm ring pack with gas ports, accumulator grooves and anti detonation grooves

Terry Cain · 03-11-2009, 07:34 AM

TRMNATR,
Email me direct. I've got several cranks.
Terry

chris ok · 03-11-2009, 10:04 AM

best stock small blocks. know of a few 9 second cars built before the ease of availability of good quality aftermarket blocks. friend has a few of these 010 over 020 blocks sitting. the blocks I know of took a major beating.

trmnatr · 03-11-2009, 10:31 AM

Quote:

Originally Posted by Terry Cain

TRMNATR,
Email me direct. I've got several cranks.
Terry

Terry,

Thanks, message sent

03-09-2009, 10:07 PM	#1
trmnatr Member Join Date: Oct 2008 Posts: 168 Likes: 0 Liked 1 Time in 1 Post	GM 010/020 Blocks How much HP have you Super Stock guys pushed out of 010/020 blocks filled with hardblok to bottom of waterpump with ARP main studs and factory caps in a 327 and in a 350 ? If you could answer these 3 below that would sum it up HP ? RPM ? CID ? Also, do you guys know where to find any 3.25" stroke GM cranks ? Large or small journal, if so can you please post a link Thanks in advance

03-10-2009, 09:16 PM	#2
Aaron Keown Junior Member Join Date: Mar 2004 Location: 1710 Dutch Lane,Jeffersonville,IN Posts: 63 Likes: 0 Liked 0 Times in 0 Posts	Re: GM 010/020 Blocks People have made 600+ horsepower and ran 9000 r.p.m. with good rock blocks,good being the key word there.The thing that sucks about rock blocks the most is you really don't know if you have a good one until you build a high performance engine with one and take the chance of knocking the side out of it..Yes you can use a sonic checker and all that but it still no guarantee.A reasonable number is probably 500-550 h.p and about 8000 r.p.m. I would not go more than 4.070 on the bore size on the block you are talking about.I have also seen brand new engines built with rock blocks knock the side out ,so needless to say I am not really a fan of them.With the price of after market blocks as reasonable as they are any more I really don't see much point in using one unless it is for a budget build.Also,what kind of crankshaft are you looking for,after market or a factory core?

03-11-2009, 02:37 AM	#4
trmnatr Member Join Date: Oct 2008 Posts: 168 Likes: 0 Liked 1 Time in 1 Post	Re: GM 010/020 Blocks these are the pistons we are running. They are 329gram piston, 88gram wrist pin, .043" .043" 3mm ring pack with gas ports, accumulator grooves and anti detonation grooves

03-11-2009, 07:34 AM	#5
Terry Cain Senior Member Join Date: Feb 2008 Location: Georgetown, Indiana (close to Louisville, KY) Posts: 778 Likes: 530 Liked 231 Times in 107 Posts	Re: GM 010/020 Blocks TRMNATR, Email me direct. I've got several cranks. Terry __________________ Terry Cain ???? STK tcain19689585@gmail.com

03-11-2009, 10:04 AM	#6
chris ok Senior Member Join Date: Jul 2002 Location: Long Island, New york Posts: 592 Likes: 131 Liked 46 Times in 29 Posts	Re: GM 010/020 Blocks best stock small blocks. know of a few 9 second cars built before the ease of availability of good quality aftermarket blocks. friend has a few of these 010 over 020 blocks sitting. the blocks I know of took a major beating.