Which blocks will work?
Thread Starter
Racer
Joined: Aug 2007
Posts: 260
Likes: 2
From: Pensacola Florida
Which blocks will work?
I am thinking of just rebuilding my engine. Can someone tell me what years I can use with the block that will bolt right up to everything in an 86 vette. I have an 86 with iron heads, are these still the one piece rear main seals? Thanks.
Melting Slicks
Joined: May 2007
Posts: 2,171
Likes: 1
From: Warwick RI
Going from a stumble from 900-1100RPM to a new motor. This must be serious
One piece 86 and up
http://www.montecarloss.com/SSThunder/SBCinfo.html
One piece 86 and up
http://www.montecarloss.com/SSThunder/SBCinfo.html
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
86 was the change over year.
I believe the late '86 (and verts ) engines got alum heads and 1 pce seal cranks in which case any early 2 pce seal block would suit you.
In any case the only difference in fitment to car is a change of flywheel; 1pce v 2 pce.
Getting into a later, 1 pce crank roller block opens up a lot more options.
96- 00 Vortec L31 truck block is common and cheap;
has roller cam , 50% chance of 4 bolt mains.
I believe the late '86 (and verts ) engines got alum heads and 1 pce seal cranks in which case any early 2 pce seal block would suit you.
In any case the only difference in fitment to car is a change of flywheel; 1pce v 2 pce.
Getting into a later, 1 pce crank roller block opens up a lot more options.
96- 00 Vortec L31 truck block is common and cheap;
has roller cam , 50% chance of 4 bolt mains.
Thread Starter
Racer
Joined: Aug 2007
Posts: 260
Likes: 2
From: Pensacola Florida
86 was the change over year.
I believe the late '86 (and verts ) engines got alum heads and 1 pce seal cranks in which case any early 2 pce seal block would suit you.
In any case the only difference in fitment to car is a change of flywheel; 1pce v 2 pce.
Getting into a later, 1 pce crank roller block opens up a lot more options.
96- 00 Vortec L31 truck block is common and cheap;
has roller cam , 50% chance of 4 bolt mains.
I believe the late '86 (and verts ) engines got alum heads and 1 pce seal cranks in which case any early 2 pce seal block would suit you.
In any case the only difference in fitment to car is a change of flywheel; 1pce v 2 pce.
Getting into a later, 1 pce crank roller block opens up a lot more options.
96- 00 Vortec L31 truck block is common and cheap;
has roller cam , 50% chance of 4 bolt mains.
Melting Slicks
Joined: May 2007
Posts: 2,171
Likes: 1
From: Warwick RI
That is what I was curious about...if I have a one piece seal, I will just rebuild using my block. I need to know if the early 86's with cast iron heads also came with a one piece seal or the two piece. Do all other holes line up on later blocks?? Motor mounts, tranny, heads, ect...
