Cap LT4 Blower/Head Bolt Holes with Edbrock 2650

JSH · 12-02-2023, 03:04 PM

This is likely only relevant to the rare someone searching the web for the answer.

When I recently removed my Edelbrock, I discovered that it uses two fewer bolts than does the OEM blower. Therefore, you have to cap two (2) OEM blower bolt holes (#1 and #8) when changing to the Edelbrock 2650. Edelbrock does not mention this situation.

Vapors were escaping the crankcase through the unused bolt holes into the valley. I have a MM, so the oil wasn't too bad, but it's not something you'll want.

12-02-2023, 03:04 PM	#1
JSH Drives: '20 ZLE Join Date: Jun 2020 Location: Mile High Posts: 3,562	Cap LT4 Blower/Head Bolt Holes with Edbrock 2650 This is likely only relevant to the rare someone searching the web for the answer. When I recently removed my Edelbrock, I discovered that it uses two fewer bolts than does the OEM blower. Therefore, you have to cap two (2) OEM blower bolt holes (#1 and #8) when changing to the Edelbrock 2650. Edelbrock does not mention this situation. Vapors were escaping the crankcase through the unused bolt holes into the valley. I have a MM, so the oil wasn't too bad, but it's not something you'll want. __________________ '20 ZL1 1LE A10, OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.

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