Hey guys, a buddy of mine has a red top and is looking to do a custom intake manifold setup. He is wondering if the black top runners will bolt onto the red top head? I have no experience with the black top so I am useless to him at the moment. He wants to use the black top runners then build a custom plenum. Reason for is the black top runners connect the plenum up top instead of the red top bolting the plenum to the bottom. Any info would be great. Thanks in advance!!
hey pete, I’m assuming your talking about the s-14 black top intake manifold. Excuse my ignorance but ,this is the first time I’ve heard of someone doing this. This I do know is that the s-13 head has better porting than the s-14 and the s-14 plenum was made to work with the variable valve timing in the s-14. I’m not sure how the custom plenum,you want to make will work with the less than ideal intake runners of the s-14. just something to think about. If anyone can pull this of it’s you . Dave.
I’m hoping Justin or Dave can give me a hand considering their hands on experience with the SR (both models). Any help is good. I really just need to know if the bolt pattern for the intake mani is the same on the red as it is on the black. I can make the runners more efficient and plan to anyways. Lots of boost to be thrown at it.
yo, pete. Now I would assume their the same bolt pattern but , you and I know how sometimes manufacturers can be subtle with their changes. I have an extra cyl-head you can borrow to test fit the bolt pattern .Give me a shout