1.94 in 081's

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Oct 13, 2009 | 09:15 PM

ericjon262

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Joined: Nov 2008

Posts: 1,545

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From: South Carolina

Car: 85 2M6, 87 'Bird 88 'burb

Engine: LX9, LG4, L05

Transmission: F23, 700r4, 700R4

Axle/Gears: 3.63, 2.73, 4.10

1.94 in 081's

would it be wourth my time to put 1.94 intake valves in some 081 heads for my 305 TBI? would they be shrouded by the cylinder walls?

also, what size valves are stock in 081's?

Thanks-

Eric

Oct 14, 2009 | 08:35 AM

Atilla the Fun

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Joined: Oct 2008

Posts: 6,319

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From: Northern Utah

Car: seeking '90.5-'92 'bird hardtop

Engine: several

Transmission: none

Axle/Gears: none

Re: 1.94 in 081's

Stock is 1.84" intake, so the 1.94s are an easy upgrade. But if you don't also have the shop do a 75 degree bowl hog after cutting the seats, you won't find much improvement. And if you're doing that, you may as well get aftermarket stainless 1-piece swirl-polished valves with undercut stems, and have the shop put a 30 degree back cut on each of them.