BangkokDean
Well-known member
Can anyone identify this SBC please????? posted again
Last edited:
Identfy this SBC
- Thread starter BangkokDean
- Start date
496BBC
Well-known member
red X, no pic
Twin_Turbo
Der Maulwurf
- Joined
- Mar 5, 2008
- Messages
- 7,575
Yup, links to an attachment on a forum where you have to register to see them. Dean, save the pics on your puter and upload them here please.
BangkokDean
Well-known member
Ok posted pictures again
Twin_Turbo
Der Maulwurf
- Joined
- Mar 5, 2008
- Messages
- 7,575
Yes, it's a 305 TBI roller block. Judging by the exhaust manifolds it came out of a truck or a van most likely. It's completely worthless IMO
BangkokDean
Well-known member
Thanks TT.............do you know if this block can be turned into a 350 with cylinder boring or stroking? Also are the heads any good?
Twin_Turbo
Der Maulwurf
- Joined
- Mar 5, 2008
- Messages
- 7,575
Can't be done. 305 = boat anchor.
mrvette
Phantom of the Opera
DeeVeeEight
Fast Pedalphile
Just out of curiousity, would a similar vintage 5.7 litre motor be any good or is that another boat anchor?
Twin_Turbo
Der Maulwurf
- Joined
- Mar 5, 2008
- Messages
- 7,575
87 up 1pc seal has a roller cam. All 305s are junk really. Heads are crap and decent head can't be fitted because of valve shrouding (too small a chamber)
If you want to sink money in an engine at least start w/ a 350.
If you want to sink money in an engine at least start w/ a 350.
mrvette
Phantom of the Opera
I was told/understand that in '87 the CONVERTIBLE vettes had the aluminum heads...L98 and the rest did not....then the aluminum heads were throughout the line in '88.....I have NO idea about any other cars/trucks...
so if it was a roller block, you CAN still have iron heads on it, :ghost:
so if it was a roller block, you CAN still have iron heads on it, :ghost:
Bee Jay
Well-known member
I just found out the hard way that not all post 87 blocks are roller cam equiped. The trucks didn't get roller cams until mid 90's. The intake valley is drilled for the spyder roller lifter keeper, so turning it into a roller cam block is easy, just that the lifters, spyder retainer thing, and cam is not there. I didn't discover that until I pulled the heads off of my 350 truck block to give the heads away. I need to pull the oil pan to see if it is a four bolt or not. I hope to make this block into a 396 someday.
Bee Jay
mrvette
Phantom of the Opera
My '89 truck roller engine has factory 4 bolt mains...
Twin_Turbo
Der Maulwurf
- Joined
- Mar 5, 2008
- Messages
- 7,575
You can put flat tappets in a roller block, lifterbores are the same. You can't put V8 roller lifters in a non roller block. The lifter is too long, it'll pop up out of the bore and there's no holes for a retainer spider and the block doesn't have the required clearance for the dog bones or the faced lifter bore tops 9where the dog bones rest on) however that's not something that can't be overcome with a little drilling and grinding and using 90deg. V6 lifters since they are shorter )
In other words the 90 truck block is still a roller type block, just has flat tappets/
Bee Jay
Well-known member
I wonder how GM decided which truck got roller lifters and four bolt? Is your truck an HD or 2500?
Bee Jay
mrvette
Phantom of the Opera
It is not in a truck, it's in my vette, when I bought it, the kid said what it was out of......I can't get you a S#....on account of it got milled off in the rebuild years ago....no reason for the kid to lie about it though....I put it in the vette in late '97 about this time of year...
:thumbs:
