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Thread: intake manifold
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10-22-2013, 12:49 PM #1
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intake manifold
how to check to see if my lt1 intake manifold was ported out to a 58mm and gasket matched when i dont have the tb yet or a new gasket set
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10-22-2013, 02:50 PM #2
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Use a caliper to measure it.
96 Trans Am WS6 LT1 M6: 10/7/11 - current: 245.7 RWHP / 266.2 RWTQ - 14.462s @ 98.28 MPH
94 Corvette LT1 A4: 4/12/13 - current: No dyno #s yet - 9.547s @ 75.11 MPH (1/8 mile)
92 Lumina Euro 3.4L LQ1 A4: 1/15/06 - current: The beater car that refuses to die...
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10-22-2013, 03:07 PM #3
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If you don't have a caliper only a regular tapemeasure I'll measure my stock and 58mm and give it to you in 1/16's.
It's a big difference.
Sent from my EVO using Tapatalk 294 Z28 TURBO BUILD in progress
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10-22-2013, 04:28 PM #4
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that would e helpful if i got it in inches since i dont have a caliper. the tb and ports are my main concern since i have no reference to go off of. my stock intake mainfold is still on the car and i bought this one so i could start stocking parts for my winter build.
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10-22-2013, 07:24 PM #5
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The 58mm TB is 2 1/4"
I can't find my stock tb and my intake is out being ported right now.
Sent from my EVO using Tapatalk 294 Z28 TURBO BUILD in progress
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10-23-2013, 10:45 AM #6
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To convert from mm to inches, divide mm by 25.4
Stock 48mm TB = 1.89" = a bit over 1-7/8"
Stock manifold bore = 52mm = 2.05" = a bit under 2-1/16"
58mm = 2.28" = in between 2-1/4" and 2-5/16"SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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10-23-2013, 11:32 AM #7
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injeneer, thanks for the measurements that helps out alot and seems like my port shop is right on with the opening i think ill have to invest in caliper for later measurements.
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10-23-2013, 12:56 PM #8
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Here's a pic of a 58mm bore, without the calipers.
SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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