Engine Swap

[Chokolatecake]

One of my friends says that the 1.6L single cam block is stronger than the twin cam block, and that its better just to rebuild it into a twin cam instead of just getting a swap, is that true?

[micro214_kp61]

it would help to us what type of motor and car you're talking about.

[Chokolatecake]

stock single cam, to a 4ag

[knuckleduster]

the 4ac and the 4age share the same block. 4age head will bolt directly onto the 4ac block. use a 4age timing belt and timing gear on the crank.

[Flashmn]

Good luck with the electronics.
Pistons are different too... so you might run some valve clearance problems.

[VooDoo]

fwik, 4af/4afe are also dohc engines...

[Flashmn]

yeah, but the pistons are different between 4a-f/fe and g/ge, and they arent cross-swappable.

[Kwanza]

The 4AC block is generally the same as the early 4AG blocks, but the internals are not as strong. It'll be far more cost effective to get a complete 4AG with all accessories because the 4AG mounts accessories differently than the 4AC. Like flashmn said... pistons are completely different. They may clear the extra 2 valves in the 4AG head... but then again... they may not. Cranks are completely different, the 4AG having a much beefier crank with 8 bolts for the flywheels as opposed to the 4AC using 6. The rods are much beefier on the 4AG also. Building a 4AG from a 4AC will cost a bit more than simply picking up a complete 4AG...