The 400 was rated at 245–265 horsepower (gross[150–180 HP net]) through its life. The 400 saw extensive use in full-size Chevrolet and GMC trucks; K5 Blazer/Jimmy, 1/2-ton, 3/4-ton, 1-ton, and even larger ‘medium duty’ trucks had an option to be equipped with a 400.
What car came with a 400 SBC?
The Chevrolet 400 was a compact car made by Chevrolet in Argentina from 1962 to 1974. The “400” was General Motors’s reply to Ford and Chrysler after those companies introduced the first compact cars to Argentina, the Ford Falcon and Valiant II respectively.
|Successor||Chevrolet Chevy Malibu|
What did the 400 small block come in?
The 400 was made in 4-bolt main journal from 1970 to 1972 and in 2-bolt main journal from 1973 to 1980.
Is a 400 SBC a good motor?
Evening all… the 400 is a great motor especially for street use. It has the power where you really need it. As far as overheating goes, make sure you have a good cooling system and you should be fine.
What is the best 400 SBC block?
The 509 2-bolt block with only TWO freeze plugs per side is the strongest of 400 castings. As for your goals, for longevity of the block and rotating assembly I would recommend doing several things with the block: 1) Fill the water jackets with a good quality block filler to the bottom of the water pump holes.
How much HP does a SBC 400 have?
Equipped with a dual-plane intake, Holley carb, and MSD distributor, the low-compression BPE 400 produced 457 hp at 5,900 rpm and 473 lb-ft of torque at 4,300 rpm.
How do I know if my SBC is 400?
The 400 cubic inch will turn a maximum of 6,500 RPM.
- Inspect the casting numbers on the engine block. The Chevy 400 cubic inch engine has only three distinct numbers. …
- Check the flywheel or flexplate. The 400 has a staggered bolt pattern and is externally weighted. …
- Check the bore on the engine if the heads are off.
Is a Pontiac 400 the same as a Chevy 400?
Ehhhhhhhhhhhh, the Pontiac 400 has the same bore and stroke as the 400 chevy. It has 3 inch mains that soak up 80hp from the overall flywheel horsepower figure, not!
Can you put 350 heads on a 400?
The only difference is that 400 heads have steam holes drilled in them for the 400 block. You can put 400 heads on a 350 but you should not put 350 heads on a 400 without drilling the steam holes.
Why is a 383 better than a 400?
The 383 has a better RPM range, with lots of low end torque. The 400 is a great truck engine, and if done properly, can be a great car engine as well. No_Dice was right, most of the overheating problems these engines has was because GM was using too small of a radiator for the engine.
Can a 400 SBC be internally balanced?
No, the 400 is externally balanced, other small blocks are internally balanced.
What size heads for 400 SBC?
A hot 400 SBC can easily use a head with 200+ cc intake port volume. 180cc will work OK, but will run out of breathe real quick.