Question on Small block Roller lifters.

[GTX JOHN]

Assembled the old Heads onto my SS 318 new Shortblock.

I measured and made a new set of pushrods and they had to
be a LOOONG 8 full inches to work! The new rollers are that short.

My old shortblock with everything the same even the deck height
identical and same everything except Roller lifters, required about 7.3 something.

The holes in my heads are huge and had plenty of clearance. Now I would have to
clearance the top

 

[Ironmike]

What brand lifter are ya using?

 

[GTX JOHN]

The are a set of old comps I believe, I bought from another
SS 318 racer.

 

[George Jets]

Stock 318 roller lifters are 2 5/8" roller to top end.

Stock 318 roller pushrods are 6 3/4" ball end to ball end.

Stock 302 head 318 application.

I would say at 8"s, something is very very wrong.

Yes I did read your post...


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[Newbomb Turk]

Stock 318 roller lifters are 2 5/8" roller to top end.

Stock 318 roller pushrods are 6 3/4" ball end to ball end.

Stock 302 head 318 application.

I would say at 8"s, something is very very wrong.

View attachment 1716363484

Yes I did read your post...


☆☆☆☆☆

My SFT pushrods are right at 8 inches.

 

[junkyardhero]

Yes I did read your post...

you may have read it, but i don't think you were able to parse the information that was presented.

super stock motor, i'd wager you could count the number of things that are "stock" spec in there on one hand.

not the least bit surprised on the pushrod length.

 

[GTX JOHN]

The various aftermarket Solid Roller unfortunately vary
considerably it height.

 

[RustyRatRod]

you may have read it, but i don't think you were able to parse the information that was presented.

super stock motor, i'd wager you could count the number of things that are "stock" spec in there on one hand.

not the least bit surprised on the pushrod length.

Parse. I had to look it up. LOL

 

[pink340swinger]

Just a guess without too much thought into it, the pushrod seats in the lifters are lower in the lifter body to help straighten out the pushrod angle/geometry for higher rpm use, hence the need for longer pushrods.

 

[DART5770]

Comp 828-16 roller lifters have a pushrod seat height of 1.79", which I believe is including a 5/16" ball in the lifter to measure with. Pretty short lifter! If you dig you can find other manufacturers dimensions also.

 

[GTX JOHN]

When I checked it, that number was about right but we measured
to the bottom on the pushrod seat as I recall.

 

[Newbomb Turk]

Parse. I had to look it up. LOL

That’s a sign of intelligence. An idiot would have just blown it off. Thinking people look it up.

 

[DART5770]

When I checked it, that number was about right but we measured
to the bottom on the pushrod seat as I recall.

Yes, I didn't remember if it included the ball or minus .311" when measuring.