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Old 10-10-2018, 08:26 PM
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Default newby lm7 build
hey guys new to the ls game but I picked up an lm7 and a 4l60e for 150 bucks. planning on putting it in my s10 which currently has a 355 sbc. planning on putting a cam in it and springs my question is should I keep the stock heads, get them machined ported and polished or swap them trying to do this in the cheap side any suggestions ?
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Old 10-10-2018, 09:44 PM
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If they are 862 or 706 send them to Texas Speed for their rework. They will do you a great job, get them to build a cam and spring combo for your swap. Good Luck..
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Old 10-10-2018, 09:51 PM
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how do I tell?
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Old 10-11-2018, 10:42 AM
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Originally Posted by dustyv23
how do I tell?
The numbers should be stamp at the back lower corner of the head covers. Hope this helps.
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Old 10-11-2018, 11:02 AM
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Send heads to tsp. get our high lift hot cam, and rock and roll!

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Old 10-11-2018, 07:55 PM
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The head casting number is cast into the corner of the head
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Old 10-11-2018, 09:18 PM
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lol there an 862 what's the difference between the two

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Old 10-11-2018, 09:40 PM
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They are the same just different casting methods, Some earlier 706's were prone to cracking...
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Old 10-12-2018, 11:15 AM
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862 will also normally have a notch on the deck that require our special notched mls head gasket
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