Why Is A 383 Better Than A 400?

What do I need to turn my 350 into a 383 stroker?

How to Convert a 350 Into a 383 StrokerPurchase and install a 383 stroker crankshaft, rod and 10.5-to-1 piston set.

Install a set of four-bolt steel main caps over the center two crankshaft mains if you’re using a two-bolt-main block.

Install a set of ported L31 Vortec cylinder heads.More items….

What is the best transmission for a 383 stroker?

What is the best transmission for a 383 Stroker?This is an electronically controlled trans. … Essentially this is a 700R4 with electronics, and while it has no TV cable, it does give you pump pressure control and shifting via electronics. … So there you have it, the TH350 is your best option, followed by the TH400 and that’s about it.More items…

Which is better a 383 or 406?

If you were to build 2 motors, identical except that one was a 383, and the other was the 406, the 406 will make more power across the entire rpm range. Achieving you power goals at lower rpms means less stress on the internal components, which usually translates into longer engine life.

How much to turn a 350 into a 383?

You can put a 383 together to handle about 400-450 horses for probably $1500-$1600. That would be a short block. It’s probably possible to build it for around $1200 everything off a 400 and 350 except for new pistons, rings, and bearings.

How much is a 1968 Firebird 400 worth?

1968 Pontiac Firebird ValuationEnginesMedian Sale400 CID | 330 HP$23,500428 CID | 375 HP$30,875350 CID | 320 HP$18,750400 CID | 335 HP3 more rows

Which transmission is better th350 or th400?

Automatic transmission fans will tell you that a TH400 is a stronger transmission, but the TH350 is shorter (meaning easier to adapt in smaller-bodied cars), and it saps a lot less horsepower from the engine to make it work. … These transmissions weigh about 125 pounds.

How much horsepower can you get out of a 383?

But never mind that. The point here is 502 lb-ft at 4,700 rpm and 500-plus horsepower from 5,700-6,200 rpm….Hot Rod’s Proven Recipe For A Simple Chevy 383 That Knocks Down 500 HP And 500 LB-FT.True 383 PowerRPMLB-FTHP6,20042550222 more rows•Oct 13, 2009

Are stroker engines reliable?

A few years ago stroker motors weren’t very reliable but with testing and redesigning now they are almost as reliable as a stock motor as long as you treat them right.

What’s the difference between a 383 and a 383 stroker?

The stroker has an increased piston speed because of the longer stroke. … The rod and piston have to travel in a larger diameter in the same engine rpm. This increases the piston speed, which makes the stroker pull more air at a lower engine rpm. A 383 has the same piston speed at 2,500 rpm that a 350 has at 3,100 rpm.

What is the best transmission for a Chevy 350?

TH350. Best transmission choice, hands down. The Turbo Hydra-matic 350 was first used in 1969 model cars. It was developed jointly by Buick and Chevrolet to replace the two-speed Super Turbine 300 and aluminum case Powerglide transmissions.

Is a Pontiac 400 the same as a Chevy 400?

The Pontiac 400 features a 4.121in bore and 3.75in stroker, while the Chevy 400 features a 4.125in bore and 3.75in stroke.

How much horsepower does a 400 Pontiac have?

360 horsepowerThe 389 posted numbers in the 330 horsepower range with a single spread-bore, four-barrel carburetor. The 400 pushed this number up to 360 horsepower, with the same Quadrajet single four-barrel. What sets this engine apart in the history books is the factory-installed high-performance Ram Air systems.

Is a Pontiac 400 engine a big block?

An Olds 400 is a big block, while an Olds 403 is a small block. (Sometimes it’s better to avoid the subject all together!) Thanks for the Pontiac engine history lesson Craig.

How much HP does a stroker kit add?

A traditional 4.21/ 6.625/3.0 stroker kit ups the CID to 455 and raises the SCR to around 8.8-9.1:1- with the addition of a high-lift aftermarket cam, upgraded ignition, headers and a larger exhaust, an output of over 375-425 hp is not only possible, but very attainable, even w/ stock heads.

How much is a 383 stroker kit?

Powerhouse’s basic 383 stroker kit for two-piece rear main seal blocks retails for $499, and for that price you’ll get a brand-new crank, as well as a full set of pistons, rings, rods, bearings, and gaskets-a heck of a deal.

How long do stroker engines last?

Active Member. 5spd GT said: A stroker will last quite a long time depending on how you treat it and how high you rev it. A stock engine can go over 200k with real good care…a stroker will be less.

What is the benefit of a stroker motor?

A stroker kit increases an engine’s displacement by lengthening the stroke of the piston. In a kit will be bespoke engine components altered from OEM parts to achieve this increase in stroke. They allow the piston to travel further up and down the cylinder thanks to the use of a different crankshaft.

What is the biggest small block Chevy?

The largest-displacement small-blocks ever produced by GM are the LSX454/LSX454R crate engines offered through Chevrolet Performance, at 454 cubic inches (7.4L); the largest-displacement small-block for a production vehicle is the 427-cubic-inch (7.0L) LS7 used currently in the Corvette Z06.