# Redtop head on blacktop block - good or no good?

**URL:** <https://forums.speedlife.net/t/redtop-head-on-blacktop-block-good-or-no-good/213707>\
**Category:** SON240sx Automotive\
**Created:** [June 21, 2011, 8:24am UTC](https://forums.speedlife.net/t/redtop-head-on-blacktop-block-good-or-no-good/213707 "2011-06-21T08:24:19Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![MoNtAjNiK](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@MoNtAjNiK](https://forums.speedlife.net/u/MoNtAjNiK)\
**Post date:** [June 21, 2011, 8:24am UTC](https://forums.speedlife.net/t/redtop-head-on-blacktop-block-good-or-no-good/213707/1 "2011-06-21T08:24:19Z")

</div>

Hello guys, have a quick question: someone is selling the blacktop (the newer one, with variable timing), on which the head is in rough cond. He also has a good head from redtop. Can I just mount the head on this block, or it’s not the best idea? Are they exactly same or the block for the redtop is somewhat different?

---

<div class="post-metadata">

**Author:** ![t3\_to4eturboman](https://avatars.discourse-cdn.com/v4/letter/t/57b2e6/32.png) [@t3\_to4eturboman](https://forums.speedlife.net/u/t3_to4eturboman)\
**Post date:** [June 21, 2011, 8:59am UTC](https://forums.speedlife.net/t/redtop-head-on-blacktop-block-good-or-no-good/213707/2 "2011-06-21T08:59:11Z")

</div>

im assuming your talking about an S14 blacktop i dont think the S13 blacktop has VVT, and im pretty sure itll work you just wont have VVT

---

<div class="post-metadata">

**Author:** ![MoNtAjNiK](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@MoNtAjNiK](https://forums.speedlife.net/u/MoNtAjNiK)\
**Post date:** [June 21, 2011, 7:14pm UTC](https://forums.speedlife.net/t/redtop-head-on-blacktop-block-good-or-no-good/213707/3 "2011-06-21T19:14:54Z")

</div>

what kind of head gasket then should I install, redtops have different gaskets, someone told me… Just to make sure oil and coolant paths match…

---

<div class="post-metadata">

**Author:** ![t3\_to4eturboman](https://avatars.discourse-cdn.com/v4/letter/t/57b2e6/32.png) [@t3\_to4eturboman](https://forums.speedlife.net/u/t3_to4eturboman)\
**Post date:** [June 22, 2011, 9:24am UTC](https://forums.speedlife.net/t/redtop-head-on-blacktop-block-good-or-no-good/213707/4 "2011-06-22T09:24:40Z")

</div>

im pretty sure redtop and black top S13 SRs use the same head (one just has cooling fins on the head) as for S14 SRs i have no idea if its a bit different than S13 SRs im assuming it is different\< i could check my S14 SR with some S13 SR headgaskets i have in my garage when i go home to be sure

---

<div class="post-metadata">

**Author:** ![MoNtAjNiK](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@MoNtAjNiK](https://forums.speedlife.net/u/MoNtAjNiK)\
**Post date:** [June 22, 2011, 10:18am UTC](https://forums.speedlife.net/t/redtop-head-on-blacktop-block-good-or-no-good/213707/5 "2011-06-22T10:18:45Z")

</div>

It’s actually s14 blacktop, and the gaskets are somewhat different, as far as I know.

---

<div class="post-metadata">

**Author:** ![RED\_LINE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/red_line/32/5656_2.png) [@RED\_LINE](https://forums.speedlife.net/u/RED_LINE)\
**Post date:** [June 24, 2011, 4:46pm UTC](https://forums.speedlife.net/t/redtop-head-on-blacktop-block-good-or-no-good/213707/6 "2011-06-24T16:46:58Z")

</div>

> [@t3/to4eturboman](#):
>
> im pretty sure redtop and black top S13 SRs use the same head (one just has cooling fins on the head) as for S14 SRs i have no idea if its a bit different than S13 SRs im assuming it is different\< i could check my S14 SR with some S13 SR headgaskets i have in my garage when i go home to be sure

Nope. Blacktop S13 SR’s on top of having the cooling fins, they’re a higher flowing head design and other upgraded components in general from factory. Redtops \< Blacktops, S14 and S15 variants are different as well. Your better off getting the same head replaced.