I'm not certain, but dont the roller cam motors have a larger diameter pushrod tubes? I'll have to go pull some heads off my shelf and measure them.
As I said they were unusable. Will just go with a set of reman heads & put the motor back together1976 heads will work the hydraulic cam no problem, if set up correctly with the right springs, seat load , open load, check coil bind height
Yes they do 0.660 diameter, another reason to go with the remansI'm not certain, but dont the roller cam motors have a larger diameter pushrod tubes? I'll have to go pull some heads off my shelf and measure them.
Yup! #302 heads are at .650" and #915 heads are at .50"Yes they do 0.660 diameter, another reason to go with the remans
The Magnum heads oil the rockers through the pushrods so make sure you get the proper lifters and pushrods.Latest update. Could not find a set of reman heads for the '89 specs so ended up going with a set of Magnum heads, got them today. Tomorrow will tear the short block down to see just what condition it is actually in. Seriously considering a mild cam like the Hughes Steam Roller. Did get the 8.75 rear end that has a 3.23 posi unit installed! The housing & backing plates are at the powder coater now, will clean on the carrier in the morning. Transmission is at the shop being rebuilt, should get it back shortly.
Got that covered! The 89-91 motors (which mine is) use the pre magnum heads (Magnum dimensions, LA intake bolt pattern) so have the Magnum rockers & oil through pushrods already.The Magnum heads oil the rockers through the pushrods so make sure you get the proper lifters and pushrods.
The roller cammed LA engine I just rebuilt was all LA and had nothing Magnum on it. LA heads, rocker gear and solid pushrods that were not oil through type. Not sure how yours does if you have a pre-magnum, LA engine. Can you post pictures of it. I'm curious to see.Got that covered! The 89-91 motors (which mine is) use the pre magnum heads (Magnum dimensions, LA intake bolt pattern) so have the Magnum rockers & oil through pushrods already.
The roller cammed LA engine I just rebuilt was all LA and had nothing Magnum on it. LA heads, rocker gear and solid pushrods that were not oil through type. Not sure how yours does if you have a pre-magnum, LA engine. Can you post pictures of it. I'm curious to see.
I'll get some this morning. The 89-91 369 truck motor was a LA block with hydraulic roller cam, oil through pushrods & magnum rockers ...
The block has the hydraulic roller lifter setup with oil through pushrods & magnum style rockers. This combination was only made from '89-91 then the Magnum motor came out. Like I said I checked with with knowledgeable people & was told it would work.The roller cam LA motors did have through-holes in the pushrods. At least the ones I've taken apart did. I think they still oiled through the head though because of the shaft rockers.
I think you mean 'magnum lifters,' not 'rockers.' I'm not sure how any LA motor could use magnum style rockers without a head swap.
I have a '90 360 that is exactly as yours. Hydraulic roller, solid push rods, shaft valve train.I'm sorry, but my 89, roller cammed 318 that I just rebuilt, had solid pushrods #302 heads and LA shaft valve train. Not Magnum.
The block has the hydraulic roller lifter setup with oil through pushrods & magnum style rockers. This combination was only made from '89-91 then the Magnum motor came out. Like I said I checked with with knowledgeable people & was told it would work.
I'm sorry, but my 89, roller cammed 318 that I just rebuilt, had solid pushrods #302 heads and LA shaft valve train. Not Magnum.