Question about heads and intake on a 5.3L

[2drhoe]

Question... can i bolt an LS1 intake manifold to my 5.3L heads or do I need to run 241 heads? I know the LS6 and LS1 intake/heads are swappable but not sure about the 5.3L

I hear the L33 5.3L has heads similar to the 243..

Also I searched and found a link to a set of headers on summit that will fit an OBS truck for an LS1. will they also work with a 5.3L? not sure if the exhaust ports that they bolt up to are different sized on the LS1 vs the 5.3L

Thanks for the help!!

[kerrige]

Wow so much stuff to clean up here.
LS1intake will fit, but will net zero gains.
L33 has 243/799 heads which are the same thing however the ls6 243s have slightly better valves.
The headers will fit a LS1 the same as a 5.3 or essentially any gen 3 LS for that matter.

[2drhoe]

Thanks...
Not concerned with HP gains as much as Looks.. It is a show truck and I like the look of the LS1 intake manifold with plastic valve covers better than the Truck intake with the Vortec 5300 cover.