Engine Bolts
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Goopy Performance's Oversized main Engine Bolts provide a better alternative to the usual dowel pinning method of strengthening the engine. |
| These oversized bolts are specially made from a high quality steel alloy and heat treated. |
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The head measures the stock 17mm, but the shank is visibly larger in diameter. These bolts are 2mm longer than stock, as well. |
| Goopy Performance Oversized Main Engine Bolts require drilling on front, middle and both rotor housings to accommodate their larger diameter. |
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Also required is the re-tapping of the front iron to accept the 12mm - 1.25 thread pitch. Goopy Performance has kits available to help with installation. |
| Goopy Performance Oversized Main Engine Bolts are sold in sets of five, along with five precision stainless steel washers. |
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These have been extensively tested on race engines producing in excess of 900 Horse Power, and are completely reusable. |
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Goopy Performance Over-sized Main Engine Bolts |
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Hex Head Size |
Shank Diameter |
Length |
Thread Pitch |
Price |
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17mm |
12mm |
( 2mm longer than stock ) |
12mm x 1.25 |
$195.00 MSRP |
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Goopy Performance Oversize bolt "Install Kit" |
Price |
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USA made drill bit for drilling the designated slots for our M12X1.25 thread pitch hand tap. Nylon 1/2 bristle brush Wire 1/2 bristle brush |
$60.00 MSRP |