Head Torque ft lbs ????? A338715

[Colorado Boat Nut]

Well I finally got my head gasket replaced and tried to follow the book to the letter<br />Then discovered that my book has 2 different sections on inline engine’s <br />One section is on GM inline the other on Mercruiser inline <br />I guess the difference is the GM is all cast iron and the Mercruiser is all aluminum<br />Please correct me if im wrong.<br />Well mine is all cast iron (ser #A338715)<br />Now, the problem is I already torqued my head bolt’s to 130 ft.lbs. <br />Then found the other spec. of 90 ft.lbs.<br />And I think I am supposed to be 90 ft.lbs<br />Can you help me determine what is the correct torque and will this cause me any problems <br />I have not started the engine yet.<br />Thanx in advance <br />Kev

 

[Trent]

Re: Head Torque ft lbs ????? A338715

You are correct. Should have torqued to 93 foot pounds.

 

[Colorado Boat Nut]

Re: Head Torque ft lbs ????? A338715

is this going to be/cause a problem?<br />i did fire it up today on muffs it sounds good <br />i checked cold compression it was 125-130'ish across all cylinders<br />thanx <br />Kev