Will the LT4 intake bolton to lt1 heads?
12-18-2005, 11:17 AM
#3
The LT4 intake has some extra material cast on top of the ports to allow port matching to LT4 heads, it does not do so well in stock form and this extra material gets in the way of it bolting to LT1 heads meanign the head or intake has to be machined. If you machine the intake you effectively make a red LT1 intake as you remove that extra material it had. The ports and plenum are so similar to the LT1 some even clame them to be indential so the only thing this would accomplish is waste your money.
I will give you some credit though MANY guys just jump straight to "how much power will it gain me" answere being NONE and it wont fit.
While on the topic before considering anything LT4 READ READ READ those parts are not anywhere near as good as most newbies think they are and are nowhere near the deal they think they are. They do have uses but are not the holy grail of LTX performance most think them to be.
I will give you some credit though MANY guys just jump straight to "how much power will it gain me" answere being NONE and it wont fit.
While on the topic before considering anything LT4 READ READ READ those parts are not anywhere near as good as most newbies think they are and are nowhere near the deal they think they are. They do have uses but are not the holy grail of LTX performance most think them to be.
12-18-2005, 03:06 PM
#4
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bingo. the only difference after the machine work is done (there are quite possibly a million topics on this so far, a few recently which i've said the same thing in) is that the LT4 ports are slighly trapezoidal which more closely match the trapezoidal LT1 head ports. the LT1 intake ports are rectancular. any difference from this hasn't been noticed performance wise.
12-18-2005, 04:29 PM
#5
Actually there are a few different LT1 intakes and the ports vary in shape a little the LT4 ports are from my understanding shaped like the later LT1 ports. I have a 96 intake I took off my L99 though it is the same as the LT1 intakes the ports are tapered height wise like you are saying about the LT4s. The 95 intake is on the car now so I can not get pics side by side but it was more square.
12-18-2005, 05:50 PM
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Originally Posted by 96capricemgr
Actually there are a few different LT1 intakes and the ports vary in shape a little the LT4 ports are from my understanding shaped like the later LT1 ports. I have a 96 intake I took off my L99 though it is the same as the LT1 intakes the ports are tapered height wise like you are saying about the LT4s. The 95 intake is on the car now so I can not get pics side by side but it was more square.
nice to know. all the intakes i've seen were 95 or older. it would make sense if the later LT1s and LT4 intakes matched up.
