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RE: 390 or 352? By Darren - 10/09/2001 7:28:09 PM; IP 204.42.12.2 Paul is right. My 390 has the 352 on the back of the Block. The 352 mark is a good thing it means the Block is made of stronger metal. If you have it rebuilt remeber that. It will take longer to break in, but it will also take longer to wear out. Any easy why to check your stroke is with a pin. Take out one of the spark plungs and bring it to TDC then mark the pin. Then rotate the engine it BDC. You can check BDC by puting the Pin in the spark plung hole, and rotate the crank. If the once the pin stops moving your at BDC. If the pin goes up your past BDC and you need to rotate the engine the other direction. Then mark the pen again, and measure the TDC mark with the BDC mark. 3.50" from mark to mark you have a 352. 3.78" you have a 390. If your like me you get 3.98 and find out you have a 428. But my 428 was a wrongly made 428 out of a 390 which gave me really thin walls and I had to get a new block and rebuild.

This thread, so far...

Skip Navigation Links.  390 or 352? -- Mike, 10/08/2001  RE: 390 or 352? -- Paul M, 10/08/2001 RE: 390 or 352? -- Darren, 10/09/2001  428 cj -- Mike H., 10/09/2001  RE: 428 cj -- Paul M, 10/10/2001  RE: 428 cj -- Darren, 10/10/2001

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