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Author Topic:   460 Block
SG236
Gearhead

Posts: 416
From: Jasper, TN, USA
Registered: Dec 2000

posted 08-15-2001 09:41 AM     Click Here to See the Profile for SG236   Click Here to Email SG236     Edit/Delete Message   Reply w/Quote
I'm having the machine work done on the 512" being built for my Maverick.

It was suggested by a friend of mine with a Top Sportsman Probe w/514 that I have the block O-ringed. He said that water was leaking around the copper head gaskets. Now I plan on using fel-pro gaskets and my engine will not make near the horsepower he currently has. My understanding is the top of the cylinder has a piano-wire type that goes into the gasket and prevents a leak?

My setup so far:

460 D1VE block 4.440 Bore
Stock crank sonic tested 4.14 stroke
D0VE iron heads that have been ported
6.8 Eagle H-Beam Rods
SRP(JE) pistons 1.45 pin height and for the stroker 460.
ATI Race Damper
Shogun water pump.
Ultra-Dyne flat tappet cam .633/.636 lift, [email protected]
Crane Gold 1.73 roller rockers, Crane stud girdle and guide plates.

Any input?

------------------
Russ Hood
70s Maverick S/Pro
https://mustangsandmore.com/ubb/SG236.html

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Big Block Capri
Gearhead

Posts: 136
From: Essex, Ontario, Canada
Registered: Nov 2000

posted 08-15-2001 10:03 AM     Click Here to See the Profile for Big Block Capri   Click Here to Email Big Block Capri     Edit/Delete Message   Reply w/Quote
Russ,
Your friend with the Probe is likely stuffing alot of nitrous down the thing which would call for the o-rings. I would suggest that the block be sonic checked before taking it .080 over, but if that checks okay then I can't see the need for the o-rings, especially with iron heads. That's my opinion.

------------------
Paul Garant
"No replacement for displacement."

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SG236
Gearhead

Posts: 416
From: Jasper, TN, USA
Registered: Dec 2000

posted 08-15-2001 11:09 AM     Click Here to See the Profile for SG236   Click Here to Email SG236     Edit/Delete Message   Reply w/Quote
Paul,

Yes the block has been sonic tested and it's OK. The Probe runs 5.20 in the 1/8th and I will be around the 6.20s so there is quite a bit of difference. He does not use NOS, but still turns the thing pretty hard. I plan on leaving at 3600-3800 and shifting at 6400.

------------------
Russ Hood
70s Maverick S/Pro
https://mustangsandmore.com/ubb/SG236.html

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F551
Gearhead

Posts: 245
From: Manitoba, Canada
Registered: Nov 2000

posted 08-15-2001 07:18 PM     Click Here to See the Profile for F551   Click Here to Email F551     Edit/Delete Message   Reply w/Quote
Russ - I agree with Paul. We use the FelPro gaskets, never had a problem. Our combo uses a .030" over Arias piston, have never bothered checking cyl wall thickness. However we did fill the block to the water pump holes. The thing sure holds the heat - but it's gotta help. Had you consdered filling the jackets?

------------------
Fred
68 Mustang 500CID/Powerglide - "No Tubs"
86 Mustang GT Cobra

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SG236
Gearhead

Posts: 416
From: Jasper, TN, USA
Registered: Dec 2000

posted 08-16-2001 08:28 AM     Click Here to See the Profile for SG236   Click Here to Email SG236     Edit/Delete Message   Reply w/Quote
Fred,

I am considering filling the block. What brand name did you use? Do you use alcohol?

Russ

------------------
Russ Hood
70s Maverick S/Pro
https://mustangsandmore.com/ubb/SG236.html

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F551
Gearhead

Posts: 245
From: Manitoba, Canada
Registered: Nov 2000

posted 08-16-2001 08:42 AM     Click Here to See the Profile for F551   Click Here to Email F551     Edit/Delete Message   Reply w/Quote
We didn't use a "name brand" - machine shop recommended a Industrial product - some kind of grout. Can't remember the name on the bag off hand... was an epoxy based material. It's over three years and we haven't noticed a problem, nothing in the coolant and the holes are still round.

Believe it's worth while with a OEM block.

No we aren't running Alcohol, it's something we've talked about - probably $1500 - $2000 upgrade up here. Would sure make a difference on the hot days!

------------------
Fred
68 Mustang 500CID/Powerglide - "No Tubs"
86 Mustang GT Cobra

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S/Q 2204
Gearhead

Posts: 103
From: Ozark, AL(again after a year of being deployed)
Registered: Feb 2001

posted 08-18-2001 12:26 AM     Click Here to See the Profile for S/Q 2204   Click Here to Email S/Q 2204     Edit/Delete Message   Reply w/Quote
Russ,
You should probably never have to worry with O'ringing. The only head I have had any problem with deflection was the A-460 head (with alot of compression). The production heads have a good deck. I don't think much about pouring the block,just more weight. The gas guys around here don't either. I am strictly alcohol injection & love it. Whatever else you do, do double pin the cam. Your lifters, valves, pushrods, rocker arms and your wallet will appreciate it. I use roller cam bearings and it is still a time bomb if you don't double pin the cam.
Good luck & let me know if I can help.
Mark J.

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SG236
Gearhead

Posts: 416
From: Jasper, TN, USA
Registered: Dec 2000

posted 08-19-2001 07:38 PM     Click Here to See the Profile for SG236   Click Here to Email SG236     Edit/Delete Message   Reply w/Quote
Mark,

What gear do you run? I am thinking about alcohol and the software program I play with a little said way too much gear using my 4.88. Car is light ~2500. Software says 4.11 gear and alcohol = 5.82 in the 1/8th.

Yes I will definitely double pin the cam.

------------------
Russ Hood
70s Maverick S/Pro
https://mustangsandmore.com/ubb/SG236.html

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S/Q 2204
Gearhead

Posts: 103
From: Ozark, AL(again after a year of being deployed)
Registered: Feb 2001

posted 08-19-2001 09:38 PM     Click Here to See the Profile for S/Q 2204   Click Here to Email S/Q 2204     Edit/Delete Message   Reply w/Quote
Russ,
At 2525lb. & 33" tall tire in the 1/8th we used a 4.86 with the glide. If memory serves me right a 4.57 was used in the 1/4 crossing at 7200. That engine & glide ran around 5.50 in the 1/8th, 5.25 or so with the Lenco (both at around 1800 Ft. of air). Probably best to use the program 'cause it takes all your variables in to account.
Later,
Mark J.

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