need a 6520 msd 6 ....

Jack McCarthy · 04-05-2018, 01:56 PM

ok nees, smedley, all you v-6 guys ....
it is only box works with a ODD fire v-6

hate to buy a new one they do have a few left

Billy Nees · 04-05-2018, 02:06 PM

Jack, I told Fulper the other day that when Schmutz was alive and racing he had to get a box right from MSD. Chevy V6s aren't odd fire, they're semi-odd fire.

Jack McCarthy · 04-05-2018, 03:07 PM

what the hell is a semi odd fire ....
that sounds like some kinda transvestite thing

witch doctor used a 6520 ....

Jack McCarthy · 04-05-2018, 03:18 PM

ive been thinking on this billy .... and i got questions !!!!! lol

semi odd fire ??
so its got more than three throws on the crank ??? like 4 1/2 ?? WTH ???

i need edumification sir

6130 · 04-05-2018, 03:27 PM

From Wikipedia:

"the 200 cid and 229 cid, have what is called a 'semi-even fire' sequence which alternates between 132º and 108º. This comes about due to the 'slipped disc; crank pins; each pair of rods are offset by 18º. The design of the crank required the connecting rods to have 0.050" narrower ends to fit onto the available rod journal space due to the material added to the cranks for strength."

"The 4.3L V6 engine has an even-fire sequence, occurring 120 degrees apart. This is accomplished by having a larger 30º offset on the rod journal pairs."

Jack McCarthy · 04-05-2018, 03:54 PM

as opposed to the buick 231 .... same or different ???

i need a 283

04-05-2018, 01:56 PM	#1
Jack McCarthy VIP Member Join Date: Feb 2002 Location: lyndon ky. ... louisville area Posts: 1,284 Likes: 22 Liked 352 Times in 92 Posts	need a 6520 msd 6 .... ok nees, smedley, all you v-6 guys .... it is only box works with a ODD fire v-6 hate to buy a new one they do have a few left __________________ Jack McCarthy 3609 STK "the Captain"

04-05-2018, 02:06 PM	#2
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,218 Likes: 3,091 Liked 6,772 Times in 1,519 Posts	Re: need a 6520 msd 6 .... Jack, I told Fulper the other day that when Schmutz was alive and racing he had to get a box right from MSD. Chevy V6s aren't odd fire, they're semi-odd fire. __________________ Billy Nees 1188 STK, SS Make tech "TECH" again!

04-05-2018, 03:07 PM	#3
Jack McCarthy VIP Member Join Date: Feb 2002 Location: lyndon ky. ... louisville area Posts: 1,284 Likes: 22 Liked 352 Times in 92 Posts	Re: need a 6520 msd 6 .... what the hell is a semi odd fire .... that sounds like some kinda transvestite thing witch doctor used a 6520 .... __________________ Jack McCarthy 3609 STK "the Captain"

04-05-2018, 03:18 PM	#4
Jack McCarthy VIP Member Join Date: Feb 2002 Location: lyndon ky. ... louisville area Posts: 1,284 Likes: 22 Liked 352 Times in 92 Posts	Re: need a 6520 msd 6 .... ive been thinking on this billy .... and i got questions !!!!! lol semi odd fire ?? so its got more than three throws on the crank ??? like 4 1/2 ?? WTH ??? i need edumification sir __________________ Jack McCarthy 3609 STK "the Captain"

04-05-2018, 03:27 PM	#5
6130 Member Join Date: Jul 2012 Location: Texas Posts: 409 Likes: 295 Liked 117 Times in 50 Posts	Re: need a 6520 msd 6 .... From Wikipedia: "the 200 cid and 229 cid, have what is called a 'semi-even fire' sequence which alternates between 132º and 108º. This comes about due to the 'slipped disc; crank pins; each pair of rods are offset by 18º. The design of the crank required the connecting rods to have 0.050" narrower ends to fit onto the available rod journal space due to the material added to the cranks for strength." "The 4.3L V6 engine has an even-fire sequence, occurring 120 degrees apart. This is accomplished by having a larger 30º offset on the rod journal pairs." Last edited by 6130; 04-05-2018 at 03:33 PM.

04-05-2018, 03:54 PM	#6
Jack McCarthy VIP Member Join Date: Feb 2002 Location: lyndon ky. ... louisville area Posts: 1,284 Likes: 22 Liked 352 Times in 92 Posts	Re: need a 6520 msd 6 .... as opposed to the buick 231 .... same or different ??? i need a 283 __________________ Jack McCarthy 3609 STK "the Captain"