Saw these in the Summit store online

[smokeonthewater]

I think pretty much any cam will work w rollers..... just can't use a roller specific cam w non roller lifters...

Aren't you having a cam reground... could you not specify that it be a roller cam?

[THEFERMANATOR]

Originally Posted by smokeonthewater

I think pretty much any cam will work w rollers..... just can't use a roller specific cam w non roller lifters...

Aren't you having a cam reground... could you not specify that it be a roller cam?

Don't work that way. Roller cams have a COMPLETELY different grind profile to them than a flat tappet cam has. The contours of a flat tappet cam with roller lifters wouldn't last long, not to mention roller cams are made of billet steel whereas flat tappets are cast. I'm sure Aussie could get a custom grind done, but it would cost ALOT of money to do so. I know COMP has blanks that can be custom ground to most anything, but the cost would be up close to a grand US probably for a one off like a 3.7L.

[smokeonthewater]

OOPS! I completely forgot about WHY they don't work that way!

the flat tappet cam lobes are ground at an angle so they rotate the lifters.... Yeah ur right of course can't use rollers or they'd be riding on just the edge of the wheel.... sorry for any confusion.

[spareparts]

Hey Aussie, has any one laid that 3.7 cam beside a 460 cam? Wonder if you could run a 460 cam on only use half the lobes? You'd have to bore the end of the cam to accept the shaft for the water pump though.

[aussie]

Originally Posted by spareparts

Hey Aussie, has any one laid that 3.7 cam beside a 460 cam? Wonder if you could run a 460 cam on only use half the lobes? You'd have to bore the end of the cam to accept the shaft for the water pump though.

i look at that the distrubtor gear would be a problem so i think that's out

[aussie]

I guess a lot of you guys are thinking why am i wasting my time and money on a small 3.7 when i can drop a V8 in my V and have all the power i want here are a few reasons why i haven't gone that way

( 1 ) prices for a S/H V8 boat engine are too expensive here

( 2 ) don't wont the extra weight

Reasons why i stuck with the 3.7

( 1 ) the light weight of the engine and even more with the alloy head

( 2 ) engine parts being cheap because same as a 460

( 3 ) fuel efficient

( 4 ) Most of all being a unique engine having a smaller engine making
good power is more rewarding than dropping a V8 in it when i do go
out for a fish and my boat is more fuel efficient than my mates boats
its a fishing boat and will be well balanced with the 3.7

[smokeonthewater]

Not me... I like the 4 cyl plan

[aussie]

Originally Posted by aussie

I guess a lot of you guys are thinking why am i wasting my time and money on a small 3.7 when i can drop a V8 in my V and have all the power i want here are a few reasons why i haven't gone that way

( 1 ) prices for a S/H V8 boat engine are too expensive here

( 2 ) don't wont the extra weight

Reasons why i stuck with the 3.7

( 1 ) the light weight of the engine and even more with the alloy head

( 2 ) engine parts being cheap because same as a 460

( 3 ) fuel efficient

( 4 ) Most of all being a unique engine having a smaller engine making
good power is more rewarding than dropping a V8 in it when i do go
out for a fish and my boat is more fuel efficient than my mates boats
its a fishing boat and will be well balanced with the 3.7

I forgot another reason im keeping the 3.7 a few members told me that they make good power for what they are and I only took the boat for one short run and had the push rod problem so I couldn't tell how good it was