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Is a 400 a big or small block?
GM had its own version of the 400 motor but ot is considered a small block, and not a big block. Just by . 1 Liters actually, if you want to be technical. The 400 What is the largest version of the generation one small block measuring in at 6.6 L it made it Steve you in 1970 and was produced for a decade.
How much horsepower does a 400 big block have?
In this application, the 400 had a four-barrel carburetor, had the same 8.2:1 compression, and was rated at 195 horsepower and 305 pound-feet of torque….Premium Member.
| 1974 horsepower | 400 | 440 |
|---|---|---|
| 2-barrel | 185 @ 4,000 | |
| 4-barrel HP | 250 @ 4,800 | 275 @ 4,400 |
| Police | 240 @ 4,800 | 275 @ 4,400 |
How much horsepower does a 400 Chevy engine have?
In case you missed the story, the best power numbers were gained with a set of GM Performance Parts Vortec heads supplied by Scoggin-Dickey, and even then the 400 small block Chevy managed only 401 hp and 458 lb-ft of torque. We were underwhelmed.
What’s better big block or small block?
Big block engines are larger in size and weigh more, but they produce more consistent power and torque to overcome the weight. Small block engines are smaller for better acceleration and handling, but more recently built models can be just as powerful as big block engines.
Can a 350 small block handle a 400?
As long as you have steamholes in the right spot in the heads, no other equivelent small block can touch a 400. nowadays with everybody going to 383’s. IMO 350’s are the new 305, and 383’s are the new 350.
Can you buy a SBC block with 350 mains?
I’ve noticed that you can buy a SBC block say a 400 block but with the smaller 2.450″ (350) mains instead of the regular 2.650″ mains that are standard on the SBC 400. You can even buy a 4.000″ stroke crank with the smaller 2.450″ mains.
What is the difference between a 350 journal and 400 journal?
The benefit of the 350 journal is slower bearing speed. Sometimes though a 400 journal needs to be speced due to crank choice, availability and cost. If a choice is available you would want the 350 journal.
Should I get a 383 or a 350 or a 400?
Do the 400 with a 5.7 rod lenght. 383 don’t breath as well as a 400 due the smaller bore that shrouds the valves. A 350 just has to work harder to get the job done and if you already have the 400 SBC then it is a no brainer.