Standard Bore Size for this application is 4.125"
Complete set for 8 Pistons

Brand New Factory Fresh Stock

Buick V8:

364 5.9L OHV V8 Buick 1957-61

Chevrolet V8:

348 4.7L OHV V8 Chevy 1958-61

400 6.6L OHV V8 Chevy 1970-76

402 6.6L OHV V8 Chevy 1970-72

Oldsmobile V8:

425 7.0L OHV V8 Oldsmobile 1965-67

455 7.5L OHV V8 Oldsmobile 1968-76

GM Chevy GMC Truck, Van, SUV V8:

348 5.7L OHV V8 1958-64

400 6.6L OHV V8 75-80 4.125" Bore (VIN Code M,R,U,X)

402 6.6L OHV V8 1970-72 4.125" Bore 1970-72

Enginetech Part Number M41258.STD

Standard Bore Size 4.125" This Ring Set is Standard Size.

Ring Width Top: 5/64"

Ring Width 2nd: 5/64"

Ring Width Oil: 3/16"

This Ring Set is in Standard Size.

Interchange part numbers:

FM Sealed Power No. E-243K

Hastings Part No. 2M-661

Perfect Circle No. 40141

Premium Quality Excellent Value Ships Fast

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Combined Shipping: I can combine most small items to save you money on shipping. To do this you must e-mail me BEFORE you make payment or go through eBay checkout. eBay system will not allow combining of any items after payment has been made. After you notify me via e-mail, I can combine your items and invoice you for the total with reduced, combined shipping costs.

Return Policy: Merchandise may be returned for exchange or refund within 14 days of receipt. a 25% restocking fee will be applied to all refunds. Shipping is not refunded. Returned items must be in like-new condition and in original packaging. Bearings, Gasket sets and other skin-packaged items must be unopened. Electrical, special order, modified or installed items non returnable. No returns after 14 days of receipt of merchandise. Buyer pays all handling and shipping costs. Contact information: Smith Engine Parts 3035 S. Broadway Wichita KS 67216 316-522-8138 (9:00am-12:pm.M-F)

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We strive for 100% customer satisfaction. If you are not satisfied with any product or service from Smith Engine Parts, please let me know personally and I will give it my full attention. Vern smith

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