mast black label ls3 heads
#1
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is anyone on here running the mast heads? i bought some for my 408 build. im hoping that will make some good power. any feed back on these would be great.
![](https://a2.sphotos.ak.fbcdn.net/hphotos-ak-ash4/185550_2091147473222_1081315806_32368981_447989_n.jpg)
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#2
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They look like junk. I'll let you know how they work holding my door open. LOL. Heard ALOT of good things about MAST heads.
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part #510-307 Large bore ls7 have 274cc intake port volume flows 395 cfm, going on my new N-A 441Ci lsx block bore-out to 4" 185. on E85 with 12.8 comp, engine put together, hope to have it running this month time allowing
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#8
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part #510-307 Large bore ls7 have 274cc intake port volume flows 395 cfm, going on my new N-A 441Ci lsx block bore-out to 4" 185. on E85 with 12.8 comp, engine put together, hope to have it running this month time allowing
https://ls1tech.com/forums/generatio...t-pix-now.html
https://ls1tech.com/forums/generatio...t-pix-now.html
#10
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To the OP - great looking heads. What are your goals? I'm interested in how this build turns out. Can you send more details on cam? FAST or LS3 intake?
#11
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I'd like to know that as well, the GMPP CNC LS3 heads are what I bought for my 408 build and are half the cost, it would have to blow them out of the water for me to buy the Mast Black Labels.
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car is finally running now. build went way over what i was wanting to spend. should be dyno'd in the next few days. ill post the sheet. everything i have heard and read about these heads is awesome. im looking for 550rwhp ish N/A for a street car. will spray is it later (kid on the way) thanks for the imput guys
#19
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goal is to have a 9 sec street car i can drive anywhere. im using the ls3 intake since mast said there is only a 7hp gain over stock ls3 with the fast 102. the cam is 238/248-650/650-110.