Chevy small block
- Thread starter simcross
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Saltydawg
Well-known member
The Small Block Chevy was first made in 1955.
It remained basically the same up till 1992 when Chevy came out with the LT1.
The LT1's were still based heavily on the original design but had aluminum heads, reverse flow cooling, and newer style electronic packages.
In 97 GM came out with the LS1 small block...pretty much a completely different motor from the original small block.
It remained basically the same up till 1992 when Chevy came out with the LT1.
The LT1's were still based heavily on the original design but had aluminum heads, reverse flow cooling, and newer style electronic packages.
In 97 GM came out with the LS1 small block...pretty much a completely different motor from the original small block.
skyeagle
Well-known member
Ok look at this 283=4.8, 307=5.0, 350=5.7 some times
it's all in the wording.
it's all in the wording.
JHH
Well-known member
The 5.7 (350) is basically the same up to OLD body style 99 trucks. It has just had a few upgrades to the block casting such as one piece rear main seal and no place to put an external fuel pump since 1969. The new 5.3 and 4.8 are completely different and are what is being used now. I think the new engines will be just as good as the old ones except they have more noise (piston slap) when cold due to the piston design with little or no skirt. this does not seem to affect the life of the engine. JHH
Mahoney Pursley Ranch
Well-known member
All GM V8 small blocks originated from the first Chevy V8 in 1955,the 265 CI. They evolved through the years into the 283,307,327,350 and the small block 400. There was also a big block 400. The current GM small block V8's although an entirely differant engine were derived from the original 265 V8.
Saltydawg
Well-known member
simcross":2x949ip3 said:
Nope.
Government regulations, complex fuel/ignition systems, light weight metals that don't respond well to rebuilding are just a few of the reasons modern cars are becoming expensive disposable items.
Hasbeen
Well-known member
Saltydawg":ailm9kvo said:
I have to respectfully disagree. Not long ago it was considered a feat to get 100,000 miles from a vehicle. It's normal now. While electronics and fuel injection are more expensive and complicated, the durability has definitely gotten better.
Mahoney Pursley Ranch
Well-known member
You can still get any part you need for a 283/327. I want to see you be able to do that with todays engines 20 years from now.Hasbeen":1nbt5rzz said:
novaman
Well-known member
Just look at how cars are made today. Everything is made to be replaced, not repaired. The older vehicles were made to repaired, not replaced. I can go out and find an old run down car and fix up the engine and body with a cost of course. I highly doubt the same can be said with today's cars having fiberglass and plastic parts.Mahoney Pursley Ranch":2fm0yevf said:
JHH
Well-known member
simcross":yjz26l6r said:
Most are not running, and if they are I am sure they have had valve jobs done on them. When we went to unleaded gas the seats in the heads were to soft and now we use hardend seats so that the valves will last. I am sure that there are some still running but the majority are not. Yes I think that the new ones will be better and get more miles on them than the old ones but the parts issue that some one brought up may be a real problem with the newer ones. It is true about getting parts for the old engines ( readily available) and mostly cheaper to build. But you have to admit that the fuel injected engines start better than the old carb did. JHH
