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327/331 Question - Clearencing Needed?

  • Thread starter Thread starter tjm73
  • Start date Start date Nov 16, 2005
T

tjm73

Founding Member
Aug 3, 2000
2,418
2
48
Rush, NY
Nov 16, 2005
#1
  • Nov 16, 2005
  • #1
Easy question for soemone who knows......does a 3.25" stroke crank and rod combo clear the bottoms of the 302's bores or does it need to be clearenced like the 3.40" stroke setups do?
 

EMW150

Founding Member
May 22, 2000
2,020
1
46
Roaring Spring,PA
Nov 16, 2005
#2
  • Nov 16, 2005
  • #2
tjm73 said:
Easy question for soemone who knows......does a 3.25" stroke crank and rod combo clear the bottoms of the 302's bores or does it need to be clearenced like the 3.40" stroke setups do?
Click to expand...

Not really an easy question. Some do, some don't. Depends on the rod design.
 

soontobefastfox

Member
Nov 15, 2005
275
0
16
Troy, Michigan
Nov 16, 2005
#3
  • Nov 16, 2005
  • #3
EMW150 said:
Not really an easy question. Some do, some don't. Depends on the rod design.
Click to expand...

most do need stroker clearencing, but its easy to do. Just get a dremel and do it yourself and save $250+
 
T

tjm73

Founding Member
Aug 3, 2000
2,418
2
48
Rush, NY
Nov 16, 2005
#4
  • Nov 16, 2005
  • #4
I was thinking about doing a 331 with i-beam rods to save money. I have no plans to juice or boost the engine so I-beams are plenty strong enough. Eagle says their I-beam rods are good for like 600 hp. My goal would be only 400 or so at the crank tops.
 

Grn92LX

Fidanza Man!
Founding Member
Jan 14, 2001
6,819
64
129
New York
Nov 16, 2005
#5
  • Nov 16, 2005
  • #5
Depends on the rod and rod bolt. The basic I beams that come in the $1000 cast steel crank kits are fine. I upgraded to probe ultralight I beam rods with 7/16" cap screws for a lighter higher rpm rod for my n/a 347. The basic stuff uses a 3/8" bolt I think.
 

$uperstang

New Member
Jul 20, 2004
476
1
0
Detroit, MI
Nov 17, 2005
#6
  • Nov 17, 2005
  • #6
I would say yes I had to do it on mine
 

soontobefastfox

Member
Nov 15, 2005
275
0
16
Troy, Michigan
Nov 17, 2005
#7
  • Nov 17, 2005
  • #7
hey $superstang, in your sig it says 325, I've never heard of a 325, I'm not trying call you out, but where did you get it. I'm just curious, because the lowest stroker kit I've heard of besides the long rod 306 is the 327.
 
T

tjm73

Founding Member
Aug 3, 2000
2,418
2
48
Rush, NY
Nov 17, 2005
#8
  • Nov 17, 2005
  • #8
soontobefastfox said:
hey $superstang, in your sig it says 325, I've never heard of a 325, I'm not trying call you out, but where did you get it. I'm just curious, because the lowest stroker kit I've heard of besides the long rod 306 is the 327.
Click to expand...


Someone once sold a 3.20" stroker crank which I think makes a 325.
 

soontobefastfox

Member
Nov 15, 2005
275
0
16
Troy, Michigan
Nov 17, 2005
#9
  • Nov 17, 2005
  • #9
tjm73 said:
Someone once sold a 3.20" stroker crank which I think makes a 325.
Click to expand...

ok thanks, I was just wondering.
 
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