LS1 to LM7
10-06-2015, 11:26 AM
#1
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LS1 to LM7 Alright so I'm swapping out my LS1 to an LM7 since the sleeve had a massive Crack and a chunk of the piston is missing. Now I'm more than positive that everything bolts on and it's a direct swap.
My main concern is the knock sensors, LS6 valley cover, and the tune, how bad will it thrown off by the .4 loss of displacement?
The setup is:
Ported 853 Heads
Ported LS6 intake
Ported LS1 TB
LS6 valley cover
Thunder racing 224 cam
Thunder racing 7.400 pushrods
LS7 lifters
Single Beehive Springs
Powerdyne BD -11A
My main concern is the knock sensors, LS6 valley cover, and the tune, how bad will it thrown off by the .4 loss of displacement?
The setup is:
Ported 853 Heads
Ported LS6 intake
Ported LS1 TB
LS6 valley cover
Thunder racing 224 cam
Thunder racing 7.400 pushrods
LS7 lifters
Single Beehive Springs
Powerdyne BD -11A
10-06-2015, 11:43 AM
#2
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LS6 valley cover should be just as direct as everything else.
Your tune won't be too far off, the 5.3 will just have to spin a little faster to "catch up" to the airflow demands that the larger ls1 had, so everything is going to seem slightly retarded.
Your tune won't be too far off, the 5.3 will just have to spin a little faster to "catch up" to the airflow demands that the larger ls1 had, so everything is going to seem slightly retarded.