That's a negative, raised intake ports.

 

thats what i though, and i thought the bolt locations were slightly different aswell?

 

I have an lt4 intake!

 

congrats, you can sit it next to my turbo and we will have the coolest paperweights in town.

 

i have a fake one painted red...i mean it is an lt4 intake...ahh crap

 

summit has an lt1 compatible lt4 intake manifold

 

Kenny mine will not be a paper weigtht!!!

 

That implies that it has the intake ports lowered which means it's not an LT4 intake. Also unported an LT1 intake flows better than the LT4 one does, so why would you want to use it?

 

GM performance parts LT4 fuel injeted intake manifold:
This intake manifold not only supports 425+ hp, its powdercoated red finish looks good. It features raised intake runners for inporved flow and proper port alignment for LT4 cylinder heads. Compatible with stock LT1 hardwear.

thats out of summit word for word

 

hardware refers to bolts, nuts, brackets etc. not LT1 heads