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306 Long Rod or 331 Stroker?

  • Thread starter Thread starter Jason 302
  • Start date Start date Aug 31, 2004

Jason 302

10 Year Member
Aug 9, 2003
685
71
68
Newark, Ohio
Aug 31, 2004
#1
  • Aug 31, 2004
  • #1
This won't happen for a couple years but I like to plan ahead. It will be a stock 5.0 block out of my 93 GT. Probably get all forged internals (maybe cast crank, depends on rpm range) with a girdle and etc. My induction will probably be the same which ever I decide to go with. Performer RPM 2 (maybe new BBK intake, haven't seen any tests yet), AFR 185's, and a custom cam with all the supporting components of course.

306 Long Rod- Would be a revver, probably 6500+ rpm. Lots of high end horsepower. Now, it would be stock stroke with a 5.400 rod. Being that most strokers use the same length rod with a longer stroke, I wouldn't think the pistons would be squished together bad enough to mess with ring placement or wrist pin interferance? And the high rod ratio would be easy on the cylinder walls, keep the piston at TDC longer, and let the engine rev higher, resulting in more power than a regular 306. Right? Plus, I like to be different, not as many people are running 306 LR as strokers.

331 Stroker- More torque, there's no replacement for displacement. Would probably be more streetable. But, 5.315 in. rod or 5.400 in. rod????? I know the piston/oil consuption debate has been going on forever and some say they fixed it and some say they didn't. A 5.315 rod would leave the piston less crouded but would put a little more stress on the rod and cylinder wall. A 5.400 rod puts the wrist pin up in the oil rings. At least on a 347, but what about 331? Shorter stroke, still same problem? My stroker info isn't completely filled in, how bout it guys? Opinions? Any pros or cons I left out? Wrong about anything?
 

skankin

Member
Jan 18, 2002
32
0
7
May 26, 2020
#2
  • May 26, 2020
  • #2
I’m having the same thoughts... Looking at your sig, I assume you went 306 and added a blower?
 

91GTstroked

15 Year Member
Jun 14, 2007
503
281
93
May 27, 2020
#3
  • May 27, 2020
  • #3
skankin said:
I’m having the same thoughts... Looking at your sig, I assume you went 306 and added a blower?
Click to expand...
Did you really bump a 16 year old thread?
 
Reactions: txstang84
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Rcdgl

5 Year Member
Feb 19, 2018
313
168
63
May 31, 2020
#4
  • May 31, 2020
  • #4
I can adapt. I went 331 with parts I started buying in 2005!
 
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