Author Topic: What kind of cam do I have?  (Read 1876 times)

Offline Spoonbill

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What kind of cam do I have?
« on: November 03, 2017, 01:18:05 AM »
87 r10 305 tbi 700r4. There seems to be quite inquiry on whether the trucks had roller cams in them or not. Does anyone know how to find out what came is in a vehicle without diving into engine?

Offline Rattler12

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Re: What kind of cam do I have?
« Reply #1 on: November 03, 2017, 08:25:23 AM »
FWIW I rebuilt a 350 TBI that came out of an 87 Sub for my 37 and it did not have a roller cam as original
83 C-10 shorty 454, 5spd, 3:73 posi

Online bd

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Re: What kind of cam do I have?
« Reply #2 on: November 03, 2017, 09:14:35 AM »
The OE R/V truck engines weren't fitted with roller cams.  Only the car lines had them.
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)

Offline VileZambonie

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Re: What kind of cam do I have?
« Reply #3 on: November 03, 2017, 11:57:50 AM »
The provisions were there though so you can change it over easily.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline Stewart G Griffin

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Re: What kind of cam do I have?
« Reply #4 on: November 03, 2017, 11:31:54 PM »
But the 4.3 v-6's from 87 on up DID/do have roller lifters.  (LB4)