casting #'s for L69 heads?
#1
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casting #'s for L69 heads?
what are the casting numbers for the L69 305 HO heads? i tried searching and didnt find anything... or is there a website anyone knows of that shows head casting numbers for different motors?
#2
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Location: Loveland, OH, US
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Car: 4
Engine: 6
Transmission: 5
14014416, same as LG4; or the # that ends in 081 87-up (Monte Carlo SS)
www.mortec.com has casting #s although it doesn't list them just exactly that way
www.mortec.com has casting #s although it doesn't list them just exactly that way
#6
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My expereinced tells me that every 305 cylinder head is SPEC'ED at 58cc. Some are undoubtedly a little bigger or a little smaller in reality, but I don't think any of them are as big as 64cc measured volume.
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#8
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Originally posted by Damon
but I don't think any of them are as big as 64cc measured volume.
but I don't think any of them are as big as 64cc measured volume.
#9
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
I know they put 60cc chambers on 305's i saw one on a 70's 305 in the junkyard.
#10
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Originally posted by ME Leigh
I know they put 60cc chambers on 305's i saw one on a 70's 305 in the junkyard.
I know they put 60cc chambers on 305's i saw one on a 70's 305 in the junkyard.
#11
Some shops like to take the 416 castings and machine them for 2.02 intakes and 1.60 exhausts. They then unshroud them around the area where the wall is closests to the valves. Not sure but the unshrouding may add the additional volume so they possibly may be closer to 64cc after that.
#12
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Car: 2000 astro
Engine: 4.3
Transmission: A4
Axle/Gears: 7.5 with 3.42 gears
my 416 castings came from a 1987 monte carlo ss with the L69.
my porting kit arrived, just waiting for a chance to start working on the car.
my porting kit arrived, just waiting for a chance to start working on the car.
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