4.5 to 5.0
4.5 to 5.0
Author
Discussion

BIG COL

Original Poster:

173 posts

282 months

Monday 17th September 2007
quotequote all
Have just got hold of a late (cross bolted,large journal) 4.5 chimaera engine in need of a bit of a rebuild and have had a thought. Is it possible to buy a 5.0 crank, rods and pistons (maybe forged pistons and did I hear chevy rods can be machined to fit)to make my 4.5 a 5.0

Just a thought

GreenV8S

31,027 posts

314 months

Monday 17th September 2007
quotequote all
In principle anything is possible, but even assuming you match the bore wouldn't you basically end up buying most of a 500? A 4.6 is only a little down on torque and seems likely to offer far more bang per buck.

AntonyJ

5,254 posts

311 months

Monday 17th September 2007
quotequote all
4.0 pistons for a start to raise the 4.6's CR.


Are all 5.0 cranks small journal??

Markh

2,781 posts

305 months

Monday 17th September 2007
quotequote all
AntonyJ said:
4.0 pistons for a start to raise the 4.6's CR.


Are all 5.0 cranks small journal??
Thought I heard that John Eales did a 5.0 crank with large journals

AntonyJ

5,254 posts

311 months

Monday 17th September 2007
quotequote all
Dont know, just wondered.....

BIG COL

Original Poster:

173 posts

282 months

Wednesday 19th September 2007
quotequote all
any more info any one?


AntonyJ said:
4.0 pistons for a start to raise the 4.6's CR.


Are all 5.0 cranks small journal??

spend

12,581 posts

281 months

Wednesday 19th September 2007
quotequote all
You can get one of Boosted's big cranks from V8d if its cc's you want wink The pistons, rods, cam and valve gear all need to be 'matched' for what you want there are soo many options... Just 4.6 + good heads tho is prob a good starting point IMHO.

Dave