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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

327 internals

  • Thread starter Thread starter 89streetbeast
  • Start date Start date Jan 23, 2007

89streetbeast

New Member
Dec 4, 2006
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horton,ks
Jan 23, 2007
#1
  • Jan 23, 2007
  • #1
i know the bore is a standard 4.000 and the crank is a 3.250 stroke, but what is the rod specs? are they the standard 5.090 or something else?
 
3

304billet

Member
Sep 16, 2005
315
1
16
Jan 23, 2007
#2
  • Jan 23, 2007
  • #2
5.4 rod. I personally like Scat rotating assemblies from adperformance.com or CHP.

Consider using a 4340 forged I beam with 7/16" rod bolt upgrade weighs 550 grams rather than the heavy H-beam rod. liteweight rotating assemblies spin up real fast.
 

89streetbeast

New Member
Dec 4, 2006
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horton,ks
Jan 23, 2007
#3
  • Jan 23, 2007
  • #3
cool thanks man would the sportsman block be ok for 450hp or should i go with the R302?
 

rickd93_lx

New Member
Dec 22, 2005
162
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0
Jan 23, 2007
#4
  • Jan 23, 2007
  • #4
if there is an option r302 would have to be the way to go... better to have and not need, than to need and not have
 

tording

Founding Member
Nov 11, 2000
164
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Hampton, VA
Jan 23, 2007
#5
  • Jan 23, 2007
  • #5
R302 or the Dart 302 block would be the way to go if you have the funds. If not if your only planning on making 450 you would be fine with the sportsman block. I have seen multiple guys making 600- 700 with a sportsman block and they were fine. I personally also had a sportsman block and just looking at the block you can tell it is a beefier block. The webbings themselves are stronger so you shouldn't split the block down the middle like with the stock block.
 

89streetbeast

New Member
Dec 4, 2006
365
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horton,ks
Jan 24, 2007
#6
  • Jan 24, 2007
  • #6
guess i'll go with the R302 then. be a better specimen incase i want to go with more cubes later on. thanks guys
 
3

304billet

Member
Sep 16, 2005
315
1
16
Jan 25, 2007
#7
  • Jan 25, 2007
  • #7
go with the dart sportmen from adperformance.com. They r on sale for $2000. better design and costs less to machine. The R302 can only go to a 4.125 bore, the dart to 4.185 bore.
 

89streetbeast

New Member
Dec 4, 2006
365
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horton,ks
Feb 7, 2007
#8
  • Feb 7, 2007
  • #8
got another question on the crankshaft. some i look at are either 2pc. or 1pc. for the seal. i know i got the 1 pc. now on my 306 , but what would make a difference if i went with a 2pc. seal style crank? found this one that was 1pc. and halfway resonable http://store.summitracing.com/partdetail.asp?part=TFS-55325250&autoview=sku.

anyone got any input on that ?


edit: i noticed that trickflow crank has a 3.000in. crank journal where as others have 2.248in. journals. so i asume its the difference the style of main bearing thats used?


thanks
 

Rick 91GT

Mustang Master
Nov 29, 1999
9,692
95
99
PA
Feb 7, 2007
#9
  • Feb 7, 2007
  • #9
I'd pick a DART or World block over the Ford Racing stuff anyday....

If your building a 327 it is a 8.2" deck motor which is the 302W, it has a main of 2.248" (351W is 3", 351C is 2.749") The rear cap on the DART, and WORLD are made for the 1pc seal crank.

I would suggest buying a stroker kit from a well known source that can point you in the right direction for your exact needs. This way you have the correct parts the first time around. If you not looking at building the motor yourself you can also work with a builder to help you.

Rick
www.rnhperformance.com
 

Rick 91GT

Mustang Master
Nov 29, 1999
9,692
95
99
PA
Feb 7, 2007
#10
  • Feb 7, 2007
  • #10
I'd pick a DART or World block over the Ford Racing stuff anyday....

If your building a 327 it is a 8.2" deck motor which is the 302W, it has a main of 2.248" (351W is 3", 351C is 2.749") The rear cap on the DART, and WORLD are made for the 1pc seal crank.

I would suggest buying a stroker kit from a well known source that can point you in the right direction for your exact needs. This way you have the correct parts the first time around. If you not looking at building the motor yourself you can also work with a builder to help you. This way you get all the info and knowledge of the builder.....

Rick
www.rnhperformance.com
 

89streetbeast

New Member
Dec 4, 2006
365
1
0
horton,ks
Feb 7, 2007
#11
  • Feb 7, 2007
  • #11
thanks for the info Rick . a friend of mine would be building the bottom end, he's got plenty of experience as where i only got a little lol. guess im just confused on the 1 and 2pc seal cranks. its been quite a while since ive seen a 2pc. crank so i cant really remember how it looked. i guess what im trying to get at is will a 2pc seal crank work in any 1pc seal crank type block. or does the 2pc have to be for 2pc only?

thanks,


mike
 

Rick 91GT

Mustang Master
Nov 29, 1999
9,692
95
99
PA
Feb 7, 2007
#12
  • Feb 7, 2007
  • #12
The main cap is different for a 2pc and 1pc seal, the oil pan is the same. Any crank that has the ridge made for the 2pc seal can be turned down for use with a 1 pc, but if your buying new, buy the right part.
 

89streetbeast

New Member
Dec 4, 2006
365
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horton,ks
Feb 7, 2007
#13
  • Feb 7, 2007
  • #13
cool deal, thanks Rick
 
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