Everybody sells some form of a 350 crate. But nobody sells a 400. Why? If someone's willing to spend a mid-four figure sum for a complete motor, wouldn't they spend a little more for a 400? Why has no one tapped this market?

 

400 got a bad wrap and it's an obsolete motor. nothing's used that since like the late 70's or something (whenever they stopped the sb400). Not near the demand of the 350/383/305/big blocks.

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Kyle Osterholt
Okarche, Oklahoma
ASE Master Certified
86 T/A 383 TPI
89 TTA #1002 T-top/Leather
89 TTA #1358 Hardtop/Leather
80 T/A Pace Car
73 Opel GT
73 bronco
2000 Ducati 996 Monoposto
83 MSE #52

 

400 isnt a hot selling motor. 350 is the standard replacment for all SBC's. You get about the same amount of power from a stock 350 vrs a 400 and better milage. I wish GM and other builders still made 327's.
SSC

 

World Products sells 415 and 427 shortblocks and long blocks. They are smallblock 427's, not BBC.

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89 IROC-SuperRammed 355 w/ AFR 190's and LPE 219/219 cam-http://www.geocities.com/buckeyeroc

 

GM's crate motors are just hopped up versions of their current production motors, using factory blocks that are currently being produced. They aren't going to make all the tooling and have a separate operation to make 400ci blocks for the limited amount they will sell.

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89 Transam GTA, 350TPI, auto, 3.27 rear, dual cats, gray.
Magnaflow cat-back,
K&N open element,
Best E.T. 14.63@95mph

 

The 400 went out of production and the tooling to create it was thrown in the trash heap LONG before there even was such a thing as a factory-built high performance crate motor.

 

Dart makes/sells 400cid SBC blocks in both large and small crank journal versions so you can run a 350 crank or a 400 crank...

 

Yup, if you want a new 400 you'll have to build yourself out of a bowtie block, rocket block, or aftermarket block.

 

Actually, they do. A 327 is just a 350 block with a shorter stroke crank(3.25 inch)

Funny thing is a buddy of mine rebuilt his LT1 and it says 327 on the side, not 350(even though it is a 350)

I'm thinking really hard about building a 327, high revving is great fun!

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'86 IROC 5-speed
305 LG4
edelbrock performer rpm intake
edelbrock 600 cfm carb
msd pro billet hei distributer
'95 3.23 rearend
hotchkis rear suspension
PST front polygraphite suspension
"speed kills. buy a f@&d, live forever."