Stage 4 Racing Head for Small Blocks (Predator 212, 6.5hp Clones, GX200)

So far it's been amazing. Bolt on ready to go. I didn't have any clearance issues with anything, but do yourself a favor and get a valve spring compressor. 40# valves cannot be done with out it.

So I recently bought this head. Last night I decided to do a cc test on it as I though it look a little deep/big for a 14cc head turns out it cam pit to 17.5cc resulting in a compression ratio drop from 12.7:1 down to 10.9:1 that's alot left on the table. Please do not sell this head as something it is not. Head is currently at the machine shop getting reworked will inform you on how much was milled to achieve the 14cc I was sold....

Can I straight bolt on or do I have to modify it to fit

It came fast and looks nice no imperfections but i did not recieve the lash caps or spark plug clearnce washer

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You will be 25 horsepower by only dropping in this head. Maybe 85 miles per hour.

all is good parts look great !!

There were holes in the casting which I was told were ok and wouldn’t effect performance. But for the price I believe you pay for a quality part that looks and performs to a high standard. Soo ya maybe I’ll try making my own next time

I was so excited when I bought this product. Then I got it and inspected it and found holes in the casting. HOLES!!!!! When we contacted customer support they asked for pictures which I supplied happily. They replied with “we have inspected several of these heads and found the holes to be on the bolts holes for the exhaust and will not effect performance”. Well thank God. But for $450 dollars I guess I was just hoping for the quality a $450 lawn mower head should be? I have bought numerous parts and even a motor from go power sports had no problem with any of it but the quality of this head and the unwillingness to have the integrity to admit that the head was defective makes me question if I will do business with them again. So 3 stars because the head works so far but I doubt they would send a part like that to red beards garage or cars and cameras and they aren’t spending their hard earned dollars to buy these parts. Shame on you gps

What springs come with this head and should I upgrade to 50lb springs I'm running a 356 cam with 1.3 rockers