Prepping a stock block for racing
#1968237
12/12/15 08:42 AM
12/12/15 08:42 AM
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Joined: Dec 2006
Posts: 4,647 aotearoa
rebel
OP
master
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OP
master
Joined: Dec 2006
Posts: 4,647
aotearoa
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Apart from sonic testing, magnafluxing & Torque Plate honing, what prep work do you do to make a factory block race ready? I was deburring my 400 block, cleaning up all the casting flash & generally smoothing my block, when a Chevy friend looked at what was doing & said I was wasting my time. Do any of you guys that work on stock block racers do any cleanup of the block? I coated all the inside surfaces with POR15 to make for a smoother surface for oil return, am I going too far?
Last edited by rebel; 12/12/15 08:45 AM.
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Re: Prepping a stock block for racing
[Re: rebel]
#1968250
12/12/15 10:03 AM
12/12/15 10:03 AM
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Joined: Jan 2005
Posts: 4,243 Charlotte, North Carolina
sgcuda
master
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master
Joined: Jan 2005
Posts: 4,243
Charlotte, North Carolina
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Chase every thread and blow them out with air. Deck and line bore check while at machine shop. Modifying oil pickup to 1/2" I think is still up for debate but I would recommend it.
[image][/image]
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Re: Prepping a stock block for racing
[Re: Locomotion]
#1968269
12/12/15 11:34 AM
12/12/15 11:34 AM
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Joined: Feb 2003
Posts: 6,849
fullmetaljacket
master
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master
Joined: Feb 2003
Posts: 6,849
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Re: Prepping a stock block for racing
[Re: rebel]
#1968323
12/12/15 01:05 PM
12/12/15 01:05 PM
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Joined: Oct 2007
Posts: 4,209 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,209
New York
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How will you know if you didn't completely gassed out all solvents, petro products, LocTite, etc?
You'll drive over the crank when the paint film reaches the pump.
Boffin Emeritus
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Re: Prepping a stock block for racing
[Re: polyspheric]
#1968325
12/12/15 01:10 PM
12/12/15 01:10 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
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Posts: 52,972
Romeo MI
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How will you know if you didn't completely gassed out all solvents, petro products, LocTite, etc?
You'll drive over the crank when the paint film reaches the pump. The factory paints the race blocks also.. I've been doing it for years also.. never had any issue of driving over the crank
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Re: Prepping a stock block for racing
[Re: FastmOp]
#1968369
12/12/15 02:29 PM
12/12/15 02:29 PM
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Joined: Feb 2005
Posts: 20,185 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,185
PA.
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I would never ever use Por15 but that's just me. Heck I won't even use that crap on the bottom of my cars any more after it peeled of mine and several other Friends cars.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Prepping a stock block for racing
[Re: pittsburghracer]
#1968374
12/12/15 02:44 PM
12/12/15 02:44 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I would never ever use Por15 but that's just me. Heck I won't even use that crap on the bottom of my cars any more after it peeled of mine and several other Friends cars. Same here.. I use Rustoleum .. I used Chassis Saver and POR15 on my chassis.. that stuff SUCKS.. it peels off in sheets... then I sprayed it with Rustoleum .. still holding great
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Re: Prepping a stock block for racing
[Re: rebel]
#1968422
12/12/15 03:56 PM
12/12/15 03:56 PM
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Joined: Jan 2003
Posts: 21,079 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,079
Niles , Ohio
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Dont forget main studs.They have to line hone after they are installed but add strength.Degree cam also.Balance and clearance is important also.Rocky
Chrysler Firepower
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Re: Prepping a stock block for racing
[Re: rebel]
#1968507
12/12/15 06:17 PM
12/12/15 06:17 PM
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Joined: Oct 2007
Posts: 4,209 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,209
New York
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The difference: how do you know yours is as clean as a new block?
Boffin Emeritus
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Re: Prepping a stock block for racing
[Re: polyspheric]
#1968509
12/12/15 06:22 PM
12/12/15 06:22 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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The difference: how do you know yours is as clean as a new block? Have it hot tanked... then spray it with brake cleaner.. blow it dry.. spray paint with Rustoleum that has worked for years now
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Re: Prepping a stock block for racing
[Re: polyspheric]
#1968512
12/12/15 06:27 PM
12/12/15 06:27 PM
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Joined: Feb 2009
Posts: 1,532 off the grid
340B5
pro stock
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pro stock
Joined: Feb 2009
Posts: 1,532
off the grid
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The difference: how do you know yours is as clean as a new block? How would I know a new block is as clean as mine? Clean it once, clean it again and then when you got it clean, Clean it again.
Yeah, it's got a smallblock.
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Re: Prepping a stock block for racing
[Re: MR_P_BODY]
#1968522
12/12/15 06:42 PM
12/12/15 06:42 PM
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Joined: Feb 2005
Posts: 982 western pennsylvania
b1dartsport
super stock
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super stock
Joined: Feb 2005
Posts: 982
western pennsylvania
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The difference: how do you know yours is as clean as a new block? Have it hot tanked... then spray it with brake cleaner.. blow it dry.. sray paint with Rustoleum that has worked for years now. After you are done with all grinding, filing and block prep If you don't have access to a hot tank, take the block out on the driveway and hit all the passages with a pressure washer and blow it dry with a compressor. If you are not planning on painting anything hit it with WD40 or similar light oil because it will begin to rust almost before your eyes. wave:
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