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Old 12-02-2006, 08:14 PM   #1 (permalink)
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New 8.20 sbf boss racing block vs worlds block

any opiniouns which is better,seems like the boss will be cheapor at $1800 to worlds $2200.what about displacement capability?
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Old 12-02-2006, 08:40 PM   #2 (permalink)
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New 8.20 sbf boss racing block vs worlds block

Should still have all the same displacement capabilities if the new Boss block is siamese bore.
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Old 12-03-2006, 05:34 AM   #3 (permalink)
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New 8.20 sbf boss racing block vs worlds block

all your doing is buying a name when you buy a world block besides you get screw in plugs on the boss block im going to get on as soon as i get cabbage sorted out
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Old 12-03-2006, 06:49 AM   #4 (permalink)
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New 8.20 sbf boss racing block vs worlds block

Has anyone actually been able to get ahold of one of the new boss blocks? They've been talking about release for about 2 years and no has gotten one that i know of.

Besides, for that kind of money, paying an extra $300 to get a Dart Iron Eagle is well worth it IMO. I paid $2100 shipped for my 9.5" Iron Eagle. Can't beat that.
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Old 12-03-2006, 07:12 AM   #5 (permalink)
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New 8.20 sbf boss racing block vs worlds block

no not really really ive put my hot rod deal on the back burner im either getting a boss block or a sportsman iron eagle in short block form but as for now all hot rod ideas have came to a end.
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Old 12-03-2006, 08:30 AM   #6 (permalink)
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New 8.20 sbf boss racing block vs worlds block

I understand the new boss block is siamese bore.I did a search on the dart iron eagle and it didnt say it was siamese?
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Old 12-03-2006, 08:43 AM   #7 (permalink)
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New 8.20 sbf boss racing block vs worlds block

yeah the dart blocks are siamese bore blocks
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Old 12-03-2006, 10:17 AM   #8 (permalink)
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New 8.20 sbf boss racing block vs worlds block

the dart blocks have steel main caps,i think the fords are cast iron,dont know about the worlds.
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Old 12-03-2006, 10:23 AM   #9 (permalink)
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New 8.20 sbf boss racing block vs worlds block

darts and world's blocks have steel main caps where ford has ductile iron main caps either way they are still stronger than what some people are running at the race tracks.
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Old 12-03-2006, 12:29 PM   #10 (permalink)
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New 8.20 sbf boss racing block vs worlds block

which block would be best if i wanted the biggest bore and stroke,i was hopeing for 365+ inch ussing 4.125+ bore.This will be for a weekend street warrior with some open track road course use.I have 65 stang so the 8.20 deck block is my only consideration with the tight engine bay
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Old 12-03-2006, 03:00 PM   #11 (permalink)
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New 8.20 sbf boss racing block vs worlds block

Quote:
On 2006-12-03 12:29, stoker wrote:
which block would be best if i wanted the biggest bore and stroke. I have 65 stang so the 8.20 deck block is my only consideration with the tight engine bay
A 9.5 decked 351w motor is not as tight of a fit as you might think.

A 351w based stroker fits nicely in a 65' and stroking it to 408 will allow you to achieve most performance goals, especially if you are looking for over 400hp. The only real issue with a 351w swap is that you need to purchase special swap headers, which are readily available.

Below is a picture of my 65' with a 393w that was installed using many of the original parts from a 289:



The Shelby scoop on my car is for appearance and isn't even needed to hide my Vic Jr. intake.

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65' STANG, 3160 lbs

393W NA, 2.78 Toploader 4 Spd, 9" 3:70 Posi
Pro Comp Heads, Vic Jr. Intake, 750dp, 236/561 Solid Cam, 9.6CR, 1 3/4" Headers, Lakewood, Subframes, Caltracs




[ This Message was edited by: dennis111 on 12/4/06 6:08am ]
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Old 12-03-2006, 03:17 PM   #12 (permalink)
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New 8.20 sbf boss racing block vs worlds block

looks like that 289 has been eating its wheaties
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Old 12-03-2006, 03:25 PM   #13 (permalink)
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New 8.20 sbf boss racing block vs worlds block

Quote:
On 2006-12-03 15:17, cammerstang65 wrote:
looks like that 289 has been eating its wheaties

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Old 12-03-2006, 04:21 PM   #14 (permalink)
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New 8.20 sbf boss racing block vs worlds block

I gotta say i am shocked that you can stuff a 9.5 deck motor in there with a edel victor and still have hood clearence,that must be one thin air cleaner.I know the 351s will fit,but the 302s are tight to the shock towers as it is.IMO i think the 302s have a distinct advantage with there lighter weight if ripping turns is your main concern.
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Old 12-03-2006, 08:38 PM   #15 (permalink)
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New 8.20 sbf boss racing block vs worlds block

guys this what im going to do in the future i want a boss block scat steel crank use my h-beam rods 30 or 40 over flat tops or domes for that matter i like the boss block im not worried about the darts or world blocks i want a 331 or 340 inch engine rhs heads or vic jrs with a super victor 302 850 holley and a 4 speed a certian red comet in hot rod mag has made my mind up besides ill get the boss block to my door for around $1850 when they get them again.
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