Stayer. Porting the cylinder head. Stage 4.

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Jul 13, 2016 | 09:33 PM

#31

stayer

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Evolving Member

Joined: Jun 2016

Posts: 106

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From: Russia, Perm

Another graph overlay of stock vs ported

Improvements over the entire range of the valve opening. From the bottom to the top.

Jul 13, 2016 | 09:35 PM

#32

stayer

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Evolving Member

Joined: Jun 2016

Posts: 106

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From: Russia, Perm

I want to say that this engine is 300 HP (N/A)
At this point I will finish this topic.

PS The issue price? In Russia the work and cost of parts is $ 2,500. Expensive? Maybe, but it's worth it.
Stayer

Jul 14, 2016 | 06:25 AM

#33

bakuro117

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From: Cynthiana, KY

Awesome! That is also the most gorgeous 4g69 cylinder head I think ive ever seen. Great work!

Aug 11, 2017 | 01:31 PM

#34

truthdweller

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From: So. Jersey (San Diego native)

Stayer,

Would you be able to tell me if these dimensions are compatible with the 4g69 spring retainers? If they are not, do you have the correct dimensions?