Milling heads with MS3?
Milling heads with MS3? Ok guys I got a stock ls1 short block with a ms3 cam. I'm currently gonna get some heads weather they be stock 241's or if I can find a good deal on some 243's. My question is....what can I mill these heads down to without running into problems with flycutting? I've tried a search and only seen a few people with stock ls6 heads (64cc?) and the ms3 cam. I want my CR around 11:1. and its also going behind an auto tranny if that matters.
Any input would be great and I don't want to spend lots here and there as I'm trying to keep this a budget build. Thanks!!!
Any input would be great and I don't want to spend lots here and there as I'm trying to keep this a budget build. Thanks!!!
i would ask tsp but i dont think so, i know i had to flycutt atleast .080(recommend by tsp) when i had my ls6 heads milled .040 with my ms4 and the ms4 is not much larger then ms3
flycutting is usally cheap though, i paid my local shop 150$ to do it
flycutting is usally cheap though, i paid my local shop 150$ to do it
Yeah I might have to give them a call but just seeing if anybody has personal experience going this route.
Also would 2.05 intake valves make a difference? I might of rounds some decent heads that are 65cc but with bigger intake valves.
Also would 2.05 intake valves make a difference? I might of rounds some decent heads that are 65cc but with bigger intake valves.
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I ran a Trickflow 238/242 with .040" milled off my 241s.....ran great but when I pulled the motor down to do some other work on it you could see where the valves had just kissed the pistons a few times....no damage but I got lucky
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.051 gasket? i think this right here is your answer OP. either way you should not hesitate to check the clearance.
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not generally speaking, i know there are a lot people that fly cut with milled 243's and either this cam or something similar in duration, with great success. but despite what everyone else does....just check to be sure.
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I would not go more than a few thousandths to ensure they are flat. Any more than that is just too tight for comfort, IMO!
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hmmm.....I'm in a bind here. I wanna keep the ms3 but also want to bump my CR to 11:1.
I guess only way to get to that is flycut and still check clearance like you guys said.
Hey Matt, what about your TSP 233/239 cam? I might want to go a tad smaller and would that cam be easier to mill heads and bump up my CR?
I guess only way to get to that is flycut and still check clearance like you guys said.
Hey Matt, what about your TSP 233/239 cam? I might want to go a tad smaller and would that cam be easier to mill heads and bump up my CR?
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hmmm.....I'm in a bind here. I wanna keep the ms3 but also want to bump my CR to 11:1.
I guess only way to get to that is flycut and still check clearance like you guys said.
Hey Matt, what about your TSP 233/239 cam? I might want to go a tad smaller and would that cam be easier to mill heads and bump up my CR?
I guess only way to get to that is flycut and still check clearance like you guys said.
Hey Matt, what about your TSP 233/239 cam? I might want to go a tad smaller and would that cam be easier to mill heads and bump up my CR?
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hmmm.....I'm in a bind here. I wanna keep the ms3 but also want to bump my CR to 11:1.
I guess only way to get to that is flycut and still check clearance like you guys said.
Hey Matt, what about your TSP 233/239 cam? I might want to go a tad smaller and would that cam be easier to mill heads and bump up my CR?
I guess only way to get to that is flycut and still check clearance like you guys said.
Hey Matt, what about your TSP 233/239 cam? I might want to go a tad smaller and would that cam be easier to mill heads and bump up my CR?
for my build pat spec'd me out an EPS 230/234 .600/.609 112 lsa cam. i told him i wanted to mill down to about 60-61cc's and that's what he sent me. it may not be a bad idea to consult a pro on this one.
Honestly I'm not to familiar with XER lobes. I just wanted to try and get my compression up to help out on the responsiveness of the ms3, since I heard it's kinda a dog down low.
I PM'd pat g a couple days ago but still haven't heard anything.
So with less duration then the ms3 but around same lift, you think I can get about the same hp gains? I've researched flycutting and seems too much for me to do.
I PM'd pat g a couple days ago but still haven't heard anything.
So with less duration then the ms3 but around same lift, you think I can get about the same hp gains? I've researched flycutting and seems too much for me to do.
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Honestly I'm not to familiar with XER lobes. I just wanted to try and get my compression up to help out on the responsiveness of the ms3, since I heard it's kinda a dog down low.
I PM'd pat g a couple days ago but still haven't heard anything.
So with less duration then the ms3 but around same lift, you think I can get about the same hp gains? I've researched flycutting and seems too much for me to do.
I PM'd pat g a couple days ago but still haven't heard anything.
So with less duration then the ms3 but around same lift, you think I can get about the same hp gains? I've researched flycutting and seems too much for me to do.
pat is a busy man, took him a few days to respond to my emails as well.
and to answer your question, yes. less duration and about .600-.610 lift would still see a very nice curve, a little more low end, and should save you from having to fly cut.
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Honestly I'm not to familiar with XER lobes. I just wanted to try and get my compression up to help out on the responsiveness of the ms3, since I heard it's kinda a dog down low.
I PM'd pat g a couple days ago but still haven't heard anything.
So with less duration then the ms3 but around same lift, you think I can get about the same hp gains? I've researched flycutting and seems too much for me to do.
I PM'd pat g a couple days ago but still haven't heard anything.
So with less duration then the ms3 but around same lift, you think I can get about the same hp gains? I've researched flycutting and seems too much for me to do.
Another option you have is to run a slight dish with valve reliefs and find someone in your area to weld your chambers then CnC them to get the compression you want...this way the majority of the pressure is on the center of the piston right over the rod and not being pushed out towards the ring lands.....this is your best option
Well the cam was in the motor when I bought the short block. It's gonna be a cam only only car with maybe some juice. That's probably why it seems like I'm building around the cam.
It seems like for me to bump up my compression with out fly cutting I'll have to go with a little less duration cam.
It seems like for me to bump up my compression with out fly cutting I'll have to go with a little less duration cam.
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Well the cam was in the motor when I bought the short block. It's gonna be a cam only only car with maybe some juice. That's probably why it seems like I'm building around the cam.
It seems like for me to bump up my compression with out fly cutting I'll have to go with a little less duration cam.
It seems like for me to bump up my compression with out fly cutting I'll have to go with a little less duration cam.
It's cam only in my eyes even if I mill the stock heads, but I don't wanna go in that subject as I always do with the ford guys lol.
Like I stated in my first post this is on a budget build so porting is out of the question right now.
Like I stated in my first post this is on a budget build so porting is out of the question right now.