I know you will laugh at me for this question.
01-29-2007, 08:13 PM
#1
2nd Gear Member
Thread Starter
Join Date: Sep 2006
Location: Baytown-League City-Houston,Texas
Posts: 285
I know you will laugh at me for this question.
Very simple very stupid question...
What is the difference between a 302(60's) and a 302(80-90's)..Just the block. Not the fuel management.
Again please dont ban me because of this question.[sm=laughat.gif]
I want to buy a Used block from junk yard
What is the difference between a 302(60's) and a 302(80-90's)..Just the block. Not the fuel management.
Again please dont ban me because of this question.[sm=laughat.gif]
I want to buy a Used block from junk yard
01-29-2007, 08:22 PM
#2
3rd Gear Member
Join Date: Oct 2006
Location: Kirkland, WA
Posts: 934
RE: I know you will laugh at me for this question.
no real differance besides carbs and fuel injection. also not sure then they changed the numbers on em but they went somewhere in the middle late 70's from 302 to 5.0, ci's to liters
01-29-2007, 09:59 PM
#4
2nd Gear Member
Thread Starter
Join Date: Sep 2006
Location: Baytown-League City-Houston,Texas
Posts: 285
RE: I know you will laugh at me for this question.
thanks guys, i guess when i see these guys specify its a classic 302 they swapped for there 289 there for restoration/nastalgia purposes.. Im so glad im not as dumb as i thought i was
01-29-2007, 10:15 PM
#5
2nd Gear Member
Join Date: Apr 2006
Location: Mesa, AZ
Posts: 209
RE: I know you will laugh at me for this question.
Late model blocks do not have the hole to mount a Z-bar for mechanical linkage.
Late model blocks (85+) have taller lifter bores for roller lifters
Late model blocks are designed to use a 1 piece rear main
Late model blocks have the oil dip stick entering through the side of the block
Late model blocks (85+) have taller lifter bores for roller lifters
Late model blocks are designed to use a 1 piece rear main
Late model blocks have the oil dip stick entering through the side of the block
01-29-2007, 10:22 PM
#6
Moderator
Join Date: Sep 2006
Location: Northernish Eastish Central Texas
Posts: 3,302
RE: I know you will laugh at me for this question.
The block is essentially the same. The later models have roller lifters and a different cam, hence the name "roller 5.0".
- The firing order is different for a 5.0HO vice an early model 302.
- The waterpump on a late model rotates reversed than an early model.
- The imbalance is different. The later models use a 50oz crank imbalance where the early model are 28oz.
- The late model has a rear sump and double hump oil pan, the early model has a front sump and single sump oil pan
- The heads on a late model have thermactor ports that must be plugged.
- The oil dipstick is on the side of a late model, but in the front of an early model.
- The distributor drive gear is different between the two.
- The firing order is different for a 5.0HO vice an early model 302.
- The waterpump on a late model rotates reversed than an early model.
- The imbalance is different. The later models use a 50oz crank imbalance where the early model are 28oz.
- The late model has a rear sump and double hump oil pan, the early model has a front sump and single sump oil pan
- The heads on a late model have thermactor ports that must be plugged.
- The oil dipstick is on the side of a late model, but in the front of an early model.
- The distributor drive gear is different between the two.
01-29-2007, 10:27 PM
#7
Yukon Cornelius
Join Date: Oct 2005
Location: deep in the heart of dixie GEORGIA
Posts: 11,808
RE: I know you will laugh at me for this question.
ORIGINAL: 2bav8
Late model blocks do not have the hole to mount a Z-bar for mechanical linkage.
Late model blocks (85+) have taller lifter bores for roller lifters
Late model blocks are designed to use a 1 piece rear main
Late model blocks have the oil dip stick entering through the side of the block
Late model blocks do not have the hole to mount a Z-bar for mechanical linkage.
Late model blocks (85+) have taller lifter bores for roller lifters
Late model blocks are designed to use a 1 piece rear main
Late model blocks have the oil dip stick entering through the side of the block
+1
they sell adapters from the mustang parts house to rectify the missing hole like 40$
rollers lifters are a definite plus
the dipstick problem can be fixed with a wooden dowel tap into place and it will swell once the hot oil hits it so no leaks
the rear one piece seal is great alot better than a 2 piece
alot of guys get the vintage crank lip turned so they can run a 1 piece rear seal plus u keep the 28oz balance and the vintage rotating is supposed to be more durable
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