Promaxx small bore LS3 heads...
12-18-2019, 05:52 PM
#2
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knock-off Mast small bore LS3's?
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Jimbo1367 (09-17-2023)
05-06-2020, 09:04 AM
#7
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09-29-2021, 07:51 PM
#9
There coming out with so many Knock offs it's hard to keep up.
I'll paint a picture for you...Think of any Mast Knock off or Variation of there LS3 and there's your Data..
SPS, Liberty ls3 heads, hell throw in the Shawn Hooper Armadillo ls3 or the FED m311 vs factory ls3 head's. TSP uses the older tfs 13.5 valve angle of the TFS cathedral head.
Imagine it for the use on a smaller bore...
Most guys will go with a head spoken on or someone referenced, question is who's going to see this as a Plus as a purchase and there Budget...
Speed Masters was a plus for me in Ls7 heads... If the guides & seats are good, buy them bare and purchase the best parts for a given combination. Some heads are thinner in areas but that answer comes from porting ..once you've seen one it's just another head on the market.
I'll paint a picture for you...Think of any Mast Knock off or Variation of there LS3 and there's your Data..
SPS, Liberty ls3 heads, hell throw in the Shawn Hooper Armadillo ls3 or the FED m311 vs factory ls3 head's. TSP uses the older tfs 13.5 valve angle of the TFS cathedral head.
Imagine it for the use on a smaller bore...
Most guys will go with a head spoken on or someone referenced, question is who's going to see this as a Plus as a purchase and there Budget...
Speed Masters was a plus for me in Ls7 heads... If the guides & seats are good, buy them bare and purchase the best parts for a given combination. Some heads are thinner in areas but that answer comes from porting ..once you've seen one it's just another head on the market.
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G Atsma (09-30-2021)
10-03-2021, 05:00 AM
#10
10-04-2021, 10:17 AM
#14
You guys Know what's funny.. When I used a Chinese heads for a factory bore and all the Talk about using there casting.
Now it's the in thing from Various manufacturers.
Real talk...I don't Forget
Now it's the in thing from Various manufacturers.
Real talk...I don't Forget
10-04-2021, 01:55 PM
#16
Friend got bare units, the shop he bought them from fit nicer valves and springs before delivery. Decks are thicc, pushrods had to be almost an inch longer so went to 3/8" units, hotside had to be adjusted as well due to the height. They use LS3 rockers so used stock ones, but taking it up to 78-7900 had no issues power curve was smooth as can be.
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DualQuadDave (10-04-2021), LCBE (11-18-2021)
10-04-2021, 04:13 PM
#17
Friend got bare units, the shop he bought them from fit nicer valves and springs before delivery. Decks are thicc, pushrods had to be almost an inch longer so went to 3/8" units, hotside had to be adjusted as well due to the height. They use LS3 rockers so used stock ones, but taking it up to 78-7900 had no issues power curve was smooth as can be.
They look like an as cast version of the mast small bore 240cc ls3 heads.
10-08-2021, 01:17 AM
#18
10-08-2021, 01:18 AM
#19
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ls1leadfoot (10-08-2021)
10-08-2021, 12:52 PM
#20
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