future lt4 383

was looking on their site. i dont understand head numbers.

180cc LT1 SBC Street
195cc LT4 SBC Street
210cc LT4 SBC Racing
220cc LT4 SBC Racing
227cc LT4 SBC Racing
215cc LT4 Raised Runner

these are what they are offering. I plan to build a motor this summer. will be a forced induction motor. what type of heads am i gonna get the most numbers out of.

Honda Hunter

I dont understand as well. I dont understand how it works. I think on thier website for each of the heads listed they offer port jobs for them as well. That's where I get lost.

1racerdude

227's

hsyr

I'm a rather big fan of the 215 RR myself

JustNO

For what? Street or drag only car?

Bigger than 210 is not street friendly

IllusionalTA

why do you say that?

kingslam

stock LT1 heads have 170cc intake ports, their heads come in different ported size of intake ports, so the 1st one at 180cc is ported 10cc's over stock and so on, their heads are all tested on a flow bench

MeanGreen97Z

I'll be doing the AFR 215 Raised Runners for my heads/cam drag car. I'll be putting that plus the LT4 Edlebrock intake manifold.

TQdrivenws6

Please dear god put a worth while intake if you go to the trouble of those heads...Don't waste your time with an LTx design. If you really think its a worthy route to go with those heads, stick with 210's.

IllusionalTA

yea what he said..

kingslam

what other intake can you use then? other than an LT1/LT4 or the new edelbrock?

TQdrivenws6

Sheet metal, or a single plane at a minimum. Heads that require offset lifters (solid roller only) and rockers shouldn't have anything less. These heads are no joke.

IllusionalTA

Expect to spend no less than 2K on valvetrain component's, not to mention if you do use a Ltx intake you'll need to spend some $$ getting it to fit the rr heads.. While they are a nice set of heads and i would recommend them if you do want one of the best AFR's on the market.. I think you could get away easily w/ a 220 or so and some extra work on them for less than the 215rr... Still use your ltx intake being it's a FI setup..

hsyr

Am I misunderstanding you or are you stating that the RR 215 head can only be used with a solid roller cam?

1racerdude

Old wives tale.
Gotta know how to make um work.